yashsingh1/xdaforums huggingface dataset:
[Shield Tablet Q&A, Help & Troubleshooting] androidizen:
Hey guys I got my Shield the other day and upgraded to Lollipop strait off the bat and had massive slow down and stutters. Here are some fixes and observation on where we are getting performance bottle necks.

1. If you upgrade to Lollipop you MUST do a factory reset especially if you installed any apps like facebook before the upgrade.

2. Data being written to internal memory or SD causes slow downs and laggy response times (nothing new in that slow sequential writes common on android devices)

3. Lollipop Memory leak or poor task handling, system will after X hours start to become less responsive seems like a bug, use a task killer or cold reboot the device to get performance back.

4. Encrypting the system hurts write speeds and makes number 2 even worse do not use encryption if you care about performance.

5. Reserved.

Anyone got any other observations or tips?

A
[Shield Tablet Q&A, Help & Troubleshooting] Judge584:
Yes, never use extfat even if it seems to work.
[Shield Tablet Q&A, Help & Troubleshooting] Eat it iPhone:
Ok so i removed facebook and no more issues with browsing or elsewhere. Everything is snappy. Much happier now
[Shield Tablet Q&A, Help & Troubleshooting] Stresa:
I'm sorry but I'd have to disagree with pretty much everything you listed except for the first part of number 4.

1) I never did a factory reset and my shield is running flawlessly after flashing lollipop. I think that there are certain apps that can cause system level performance issues. I don't know the root cause of this incompatibility but I'm sure those apps can/will be fixed.

2) Slow sequential writes are not a common Android related problem. This is mostly dependent on the specific flash storage/controller included in a specific device. Google did add fstrim to android 4.3 and later as a crutch to help specific problem children like the original Nexus 7 which has a problematic controller. Ironically the shield may still have the fastest sequential writes of all android devices currently available (32g/LTE version).

3) I have been running lollipop on an original nexus 7 since it was first released. I have never restarted or shutdown this device since the first lollipop boot and it is is still running flawlessly. There have been zero problems with memory leaks or "poor task handling". I have not shutdown or restarted my shield since flashing lollipop either, zero problems.

4) Encryption will definitely impact device performance, so we mostly agree here.

I'm not trying to say that you are not having some sort of problem, but we all have to remember that 1 in a row means nothing. You need a lot of data to conclusively prove a trend.
[Shield Tablet Q&A, Help & Troubleshooting] Elevas32:
On save battery is something low sometimes :(
[Shield Tablet Q&A, Help & Troubleshooting] T-Keith:
What other apps fall into the "like Facebook"?
[Shield Tablet Q&A, Help & Troubleshooting] scar45:
+1 to this (although I assume Judge584 meant 'exfat'). I was experiencing bad lag with Android System using 100% CPU, both after a straight OTA update, then as well after wiping/factory reset. I then backed up data on my sdcard (UHS-1 Transcend 64gb), formatted it to NTFS with a 64kb cluster size, and everything has been working much better.

There's still a tiny few lags here and there due to intensive background processes running from time to time, but it's still MUCH better. I'm assuming that more bugs will be ironed out, as this was the initial release of Lollipop.
[Shield Tablet Q&A, Help & Troubleshooting] Judge584:
Yeah... Sorry for typo.
[Shield Tablet Q&A, Help & Troubleshooting] ShrekOpher:
My tablet was running super slow. I did a factory reset and it's flying now. Thanks die the update. Great information.
[Shield Tablet Q&A, Help & Troubleshooting] xtracrispy628:
You can also try the following: Go to the Nvidia Shield's "power settings" (see link below for instructions)

http://xdaforums.com/shield-tablet/general/lollipop-hidden-power-management-menu-t2956732

Go under the "apps" tab and change the sluggish apps to "let Nvidia optimize" (or just click "optimize all" button)

After updating to lollipop, chrome ran excruciatingly slow but after allowing nvidia to optimize chrome, it's zippy again! I did not need to factory reset
[Shield Tablet Q&A, Help & Troubleshooting] BlackDave:
I think chrome beta is one of them. Hangouts also. I have issues every time i use those two.
[Shield Tablet Q&A, Help & Troubleshooting] shiflux:
Using the optimizing option, installing the custom kernel and disabling zram solved the slowdowns I had.
[Shield Tablet Q&A, Help & Troubleshooting] thisisjason:
I can attest to Facebook being a big problem, as soon as I uninstalled it everything was pretty much back to normal. I'm using Tinfoil in place of the official app.

I also switched from Chrome to Atlas and have had a smoother experience browsing.
[Shield Tablet Q&A, Help & Troubleshooting] Atticus21:
I was having lag issues on 5.0. I tried many of the suggestions without much improvement. I decided to go back to Kitkat. I had to unlock the bootloader first which does a factory reset. When I rebooted I decided to reinstall my apps and just see what a fresh 5.0 looked like. Smooth. No more lag. So I rooted and I am now happy.

My advice is wipe it and factory reset. I don't know if I like Lollipop better than Kitkat but at least it is now as it should be.

Goodluck.
[Shield Tablet Q&A, Help & Troubleshooting] kickassdave:
Well, I got my tablet updated to Lollipop via the OTA and couldn't the get root without wiping and unlocking the bootloader.

After doing that and starting fresh I am still finding Lollipop on this tablet pretty darn laggy.

My phone is an HTC M8 and I'm running CM12 (alpha essentially) and that is significantly smoother, with Facebook and everything else installed and whizzing away.

The problem I would imagine is software optimisation in the ROM or the kernel I would expect. Not in relation to what you have installed.
[Shield Tablet Q&A, Help & Troubleshooting] Mathman85:
I've found if you just open the recent apps menu and clear out all the stuff you're not using, the lag goes away. I think Lollipop in the first iteration just keeps too much in memory.
[Shield Tablet Q&A, Help & Troubleshooting] nfs3freak:
I saw the comments earlier about removing encryption would help performance. I have that done on my Nexus 6.

However, does anybody have any instructions on how to remove encryption on the Nvidia Shield Tablet though? I can't seem to find anything on that, just the comments in this thread stating that it would hinder performance to have it encrypted...
[Shield Tablet Q&A, Help & Troubleshooting] BlackDave:
I would love to root and unlock the bootloader but it seems it will void the warranty. And with all the issues the tablet is at risk of having, I don't want to risk it. Is there a way to remove any traces of an unlocked bootloader (like triangle away on samsung)? I doubt there is but I thought I should ask just in case.
[Shield Tablet Q&A, Help & Troubleshooting] matyas69:
Fresh Factory Reset Lollipop :

http://img15.hostingpics.net/pics/347958Screenshot20141126161114.png

http://img15.hostingpics.net/pics/219130Screenshot20141126161018.png

After installing many apps and second user :

http://img15.hostingpics.net/pics/844782Screenshot20141211203042.png

http://img15.hostingpics.net/pics/748680Screenshot20141211203426.png

:/
[Shield Tablet Q&A, Help & Troubleshooting] matyas69:
Delete this post.
[Shield Tablet Q&A, Help & Troubleshooting] entelekia:
I've read something about Instagram... At this moment, I have downgraded to KK and waiting for 5.0.1 (and good feedback). I'm happy now :)
[Shield Tablet Q&A, Help & Troubleshooting] markymark567:
Considering the majority of people have zero issues with lollipop, I'm betting that those with slown downs and/or poor battery life have some app or outstanding system data that is causing issues. Many suggest factory resets which can help, but this will only nuke your data partition. I highly recommend a full clean install when going to lollipop. I wiped everything including my butt when moving to lollipop (except internal storage). I have no issues what so ever. Tablet is smooth as butter and I get like 3 days minimum battery life.
[Shield Tablet Q&A, Help & Troubleshooting] donatom3:
I've had issues with lollipop on 3 devices now, including the shield I bought to replace the Nexus 9 I returned. Which poll shows the majority of people aren't having issues?

My Nexus 6 was acting terrible then it got updated to 5.0.1, and is awesome again.
[Shield Tablet Q&A, Help & Troubleshooting] markymark567:
Yeah actually your right about the nexus 9. My dad has it and he had a few hang ups until the 5.0.1 update. But most I have seen with shields have zero issues. And 5.0 for the G2 is blazing fast and its still in alpha stage!!! Most reviews I have read online for many devices have high praises for performance and battery life.
[Shield Tablet Q&A, Help & Troubleshooting] primetechv2:
There was definitely some app affecting my system recently as well. My friend had downloaded File Explorer and I had a large game, but the latter was previously installed in KitKat.

Apps that touched the SD card or internal storage in any way would crash. ES File or any file explorer wouldn't load, QuickPic recalled its most recent image but crashed trying to enumerate folders, Chanu got hung up when trying to open a galley of images. Email worked fine for the little bit I tried it.

The solution was to reboot in safe mode and just start deleting things.

Yep, Lollipop is yet another beta release from a company that next releases anything but betas. Buyer beware, or definitely wait for those warnings and fixes to trickle through. Now that I deleted... Something... I can get back to trying to get my SD card working. Doubtful.
[Shield Tablet Q&A, Help & Troubleshooting] dyastrab:
Was having terrible lag issues, especially when multitasking/hitting the recent apps button. I did a factory reset yesterday morning and have almost no issues.
[Shield Tablet Q&A, Help & Troubleshooting] on6hp:
Just your date is out of sync :)

Happy new year!
[Shield Tablet Q&A, Help & Troubleshooting] bleached45:
Wut?
[Shield Tablet Q&A, Help & Troubleshooting] radx:
I have weird slowdowns too. Is it confirmed 5.0.1 will fix the slowdowns?
[Shield Tablet Q&A, Help & Troubleshooting] radx:
New ota out today. Android 5.0.1. Supposedly fixes a lot of slowdowns. I haven't tried it yet as I have to make sure I don't lose root in the process of getting the update. Will report back later when I've installed it.
[Shield Tablet Q&A, Help & Troubleshooting] Clselfridge:
Seems to have fixed a lot of lag issues i was having with my unrooted LTE variant. :good::highfive::D
[Shield Tablet Q&A, Help & Troubleshooting] ailima:
I still got the lagzzz. :( I'm pretty sure it's a ram issue.
[Shield Tablet Q&A, Help & Troubleshooting] primetechv2:
I few recently received the 5.0.1 update. I have no idea if any bugs were fixed because I have previously erased my problems, but no new ones have cropped up.

Asus is officially the only company that makes updating Android nice. Samsung has mediocre updates, and my Nexus woes have a coworker avoiding Lollipop like the Plague, but I have yet to run into a (second) huge problem with it. To those with issues, try deleting non Google apps.
[Shield Tablet Q&A, Help & Troubleshooting] radx:
I've updated now and I am still rooted with locked bootloader. After the update I had weird problems with all notifications being sticky.

I found no fix for it so I had to do a factory reset. Thus far all seems ok but I seem to have some kind of compatability problem with my 2.4ghz Wifi. But the 5ghz is decent though.

Chrome still lags more on my shield than on my Nexus 5, which is strange as the shield has more power.
[Shield Tablet Q&A, Help & Troubleshooting] zorvalth:
I'm not a fan of some booster aps but i installed 2 of them just to try and my lag in chrome, play store and ui is gone for now. The aps requier root but probably mot of you are rooted. So if anyone can try and confirm them would be nice.

https://play.google.com/store/apps/details?id=com.gejos.android.rambooster

https://play.google.com/store/apps/details?id=com.gejos.android.performancebooster

the only other tweak i got is this http://www.ibtimes.com/google-chrome-android-runs-faster-awesome-simple-hack-1719787 set to 512mb.
[Shield Tablet Q&A, Help & Troubleshooting] ailima:
Yeah, Google tried to perpetuate the myth that app killers and boosters don't work. It is true that they often mess things up way more than they help for the average person...

But on devices with less ram like the Shield, I personally find that controlling auto starts and and killing apps off is pretty much necessary.

Of course, if things start getting wierd, the first thing I do is turn off all that stuff.

One problem is that Google makes their money off of ads, and just about every app out the have some sort of ad processor - regardless of if I've payed for it or not. And if it's not an ad processor, it's an "analytics" processor. I have somewhere near 500 apps installed (user and system), most of them are continuously vying for space in my ram and loading and unloading (hammers CPU and io).

... So controlling autostarts is really important to me. Killing off the occasionally app is also important and keeps my device running better.

I really wish they had put in three gigs.
[Shield Tablet Q&A, Help & Troubleshooting] dape16:
I can tell you that ASUS updates is far from nice, at least on my ASUS TF701 tablet (Tegra 4). It has quite a lot of bugs (like a malfunctioning auto brightness) which hasn't been resolved although it has received multiple updates and it's about a year old. ASUS havn't even announced Android 5.0 for it so it's unlikely it will get the update.

For the topic: I still have slowdowns and lag with 5.0.1. Restarting the tablet solves the problem for a while.
[Shield Tablet Q&A, Help & Troubleshooting] zorvalth:
Did you try with the apps i posted up there?
[Shield Tablet Q&A, Help & Troubleshooting] primetechv2:
NVIDIA != ASUS? I was not a big fan of the Tegra processors because of huge processor slowdown problems that were based on internal storage activity!
[Shield Tablet Q&A, Help & Troubleshooting] dape16:
I will try one of them, thanks.

---------- Post added at 11:53 PM ---------- Previous post was at 11:47 PM ----------

OT:

Yeah, the ASUS TF700 with Tegra 3 had some serious problems with slowdowns. The TF701 with Tegra 4 have better performance but suffers from other problems.
[Shield Tablet Q&A, Help & Troubleshooting] bleached45:
I had the TF101 before the NST. I always noticed huge slowdowns during I/O on the TF101. Sadly I see that on this tab too, to a lesser degree. I don't see it on my LG G2. I think I may check an SD speed test app between the 2. I suggest turning off app auto updating in play store if it is on (biggest slowdowns I notice). I also use SD Maid Pro to toggle app autostarts and optimize the databases (in hopes for I/O improvement).
[Shield Tablet Q&A, Help & Troubleshooting] dape16:
I have tried the "boost" apps and the tablet feels faster in some situations (imagination or not?). But there is still lags now and then in the UI.

As an example, I play The Simpsons: Tapped out. If the Shield Tablet is recently rebooted the game is fine. But if the tablet has been used a day or two the game can be almost unplayable because of all the stuttering. After a reboot I can play without any lag at all.

I'm sure that game is very memory hungry, but I don't have that problem on my other tablet or phone.
[Shield Tablet Q&A, Help & Troubleshooting] SlimGary:
Same issue here; chrome is slow as hell ( and it's worse when facebook is installed, that's why I uninstalled it) , multi-task is slow too. I think my shield is slower than my nexus 7 2013...
[Shield Tablet Q&A, Help & Troubleshooting] joshtb86:
ive been using the apps from this guy

https://play.google.com/store/apps/developer?id=Gejos Enterprise&hl=en

ram booster and sd cache booster

significant performance increase. im talking about no slowdowns and easy multitasking

after unlocking, installing lollipop and rooting

pretty significant increases. cannot complain at all.

dont have any slowdowns on my other 2 devices (n7 2013 and n6 on vzw) so cant compare to those but this fixed my shield lollipop issues
[Shield Tablet Q&A, Help & Troubleshooting] ailima:
Thanks for the heads up! Unfortunately, it didn't help my NST Lag 'n' Lock. Forced reboots are up to about 4x a day... :(
[Shield Tablet Q&A, Help & Troubleshooting] Biovampire:
To everyone complaining about lollipop lags and reboots and so on, have you already tried to do a factory reset after the new major update? In my case has works well, the shield was super laggy but after a factory reset on lollipop everything gets a way better and now is smooth as such high end device should be. Factory reset is the way after lollipop big update.
[Shield Tablet Q&A, Help & Troubleshooting] Gadgetguy2005:
I did a factory reset - and still having (not too frequent, seemingly random) major slowdowns. The suggested applications (ram and sd booster) did not help at all - so I removed them.

I have no reboot issues or similar, just slowdowns. My Nexus 7 (gen 1) never had this. But overall, despite the slowdown - I am ok with the tablet and would not return it.
[Shield Tablet Q&A, Help & Troubleshooting] terracode:
After putting an SDCard and moving games and such to the card I was experiencing a bunch of slowdowns and stalls. Below are the steps that seemed to resolve the problems (to some degree):

1. Go to Settings, Storage and click on Apps. Click Ok to clear cache.

2. Moved all my apps back to the tablet from the sdcard, format sdcard as NTFS and put back into tablet.

3. Don't move Amazon apps that require Amazon AppStore APK to sdcard.

Tablet seems more responsive now.
[Shield Tablet Q&A, Help & Troubleshooting] primetechv2:
Okay,so I'm not the only person to think ntfs fixes some things. On another note, a newly formatted sd card might be key to having better performance.

Sent from my Galaxy S5
[Shield Tablet Q&A, Help & Troubleshooting] crazyjc81:
been there done that, great for a few days and then its back. Its not always. Mostly when you wake it up after a long break, it just refuses to respond. I hate that I picked this over the Nexus 7(Nexus 9 wasnt available then). Just super irritating to have bought the super fast K1 based tablet, and have it lag like that.

After a few mins it starts behaving properly. But you've got to patiently wait for the crappy tab to throttle back up to speed or some ****. I hate it. I know I'm saying it over and over, but I regret buying this tab. It has its moments, but the way this processor is being advertised, its supposed to be a merciless beast. Unfortunately that is not the case. :(
[Shield Tablet Q&A, Help & Troubleshooting] ailima:
Agreed. Although, I still have my nexus 7.

Also, I wonder... Have people done a factory reset and *not* restored their user apps from backup? Factory reset + CWM format everything didn't work for me, but I used tb to restore everything else.

I can't imagine why that would make a difference, but it might explain why some people are having success with factory reset and others (like myself)... Not so much.
[Shield Tablet Q&A, Help & Troubleshooting] dyastrab:
Totally agree with you. I did a hard reset after first installing Lollipop and another one earlier this week. I didn't restore apps. In both cases, that tablet was fine in the beginning. After installing a

few

apps, it started to get laggy again. I've just accepted it.

Just frustrating because my Nexus 7 (2013) with Lollipop runs just fine.
[Shield Tablet Q&A, Help & Troubleshooting] moosc:
Totally feel the same way

Sent from Bad Azz VZW LG G3 Cyan Tapatalk
[Shield Tablet Q&A, Help & Troubleshooting] Snah001:
Well these kind of probs I do not have.

It is strange though.

I have an Lte ROW model so maybe it it has something to do with that because the emmc memory is different (faster) from the Wifi version.
[Shield Tablet Q&A, Help & Troubleshooting] corygirl:
I just got my shield with lollipop 5.0.1 and I hate it is super laggy and slow, does anyone found a solution?
[Shield Tablet Q&A, Help & Troubleshooting] Wobblin30:
Have you tried a factory reset after the update? Updated mine a few day's ago and it seems to have helped.

A high pitch whine came out of the speaker last night while playing a game so I may RMA back to Amazon. Plus the power button on my unit is garbage, far worse than the Nexus 9 that I returned.
[Shield Tablet Q&A, Help & Troubleshooting] corygirl:
I factory reset 3 times since Friday :( and it doesn't help
[Shield Tablet Q&A, Help & Troubleshooting] dape16:
I have a 32 GB LTE RoW model.

I have tried to reflash it with the latest recovery images (5.0.1). I didn't restore anything from the setup wizard, started completely from scratch. Still laggy from time to time. I have noticed that when I turn it on, from off and sometimes standby, it needs some minutes to initialize before it is usable.

My solution for now is that I use the auto shutdown function so it turns it self off after 6 hours. Besides saving battery that means I don't have to manually reboot it. While boot up is slow, I got a "fresh" Shield at least once a day. That keeps lags at a minimum since rebooting often solves the lagging for a while (for me).
[Shield Tablet Q&A, Help & Troubleshooting] primetechv2:
This is, for me, just what Lollipop is and does. That and possibly an unfortunate collision of apps that don't work quite right.

Sent from my Galaxy S5
[Shield Tablet Q&A, Help & Troubleshooting] bipoler:
I got tired of the lag, I returned this thing. It's only so many factory reset one can complete

Sent from my: SM-N910T / SQC100-4 with Tapatalk : PIN 2BFBBCE3: T-Mobile 4G LTE
[Shield Tablet Q&A, Help & Troubleshooting] CaleTheKing:
I completely wiped the tablet in CWM, then restored the 5.0.1 image from the Nvidia dev site, reinstalled CWM, and then flashed SuperSU in CWM. I then started from scratch and used TB to restore everything.

Since doing that, I have never experienced ANY lag, stutter, slowdown, crash, artifacts, or anything that all of you are reporting. I haven't restarted in 10 days and everything is still butter smooth. (Only issue I can report that Asphalt 8 has never worked for me, which is sad...)

Keep in mind I don't have and have never had ANY social media apps installed, I disabled MANY of the stock apps, and disabled a lot of the receivers and services using DisableService, AutoRun Manager, and SD Maid Pro (all require root and busybox). I use SD Maid Pro as my only "Cleaning/boosting/speed-up" app.

I have also been getting 3-4 days of standby battery and 5-6 hours of SOT.

If anyone would like me to post screenshots or links, I'll try (might not be able to b/c new user).
[Shield Tablet Q&A, Help & Troubleshooting] crazyjc81:
Sounds like a good idea. Thanks :)
[Shield Tablet Q&A, Help & Troubleshooting] MrSlippery519:
That was exactly my same experience prior to upgrading to the latest...I did a factory reset as usual right after as well and didnt install any new apps. Maybe I will give this a try and see what happens, there is supposed to be a new OTA in the next week or so, so maybe will wait for that before testing the about method.

Still love the tablet but I am charging 1-2 times a day depending on usage now.
[Shield Tablet Q&A, Help & Troubleshooting] ady702:
The spec of this tablet should be running like iOS, smooth as butter, I didn't have any issues on Kitkat but on Lollipop its painful!
[Shield Tablet Q&A, Help & Troubleshooting] CaleTheKing:
Sadly I think it's as much of a "lollipop being buggy and ART being too new" problem as it is a problem with this specific tablet unfortunately. Hopefully the impending OTA fixes a lot of the issues that everyone is having.:fingers-crossed: