[Eee Pad Transformer Android Development] timduru:
I dunno guys.

As I've said before, I agree that you have a few differences between 4.4 and 5.1.

But not to the point of making it unusable or taking seconds to start apps.

Now, users are receptive or not to different type of "lags", so it's always difficult to communicate on such topics.

As far as "evidence", a video is better than a million words I guess ;)

To those who consider that 5.1 is unusable on the TF101, check this video I just made:

https://youtu.be/P3tnhs08C3w

And tell me if you consider it unusable / laggy in the video or not.

It's not the best video quality and gets out of focus sometime, but that should give you an idea of what you are supposed to get.

(it has been quite some time since I did a full format on my TF101, so you can most likely definitely get better performance than that even)

Also keep in mind that I picked up heavy website for the browser: page full of google images and XDA which is quite heavy too ;)

But as you can see, there's basically almost NO lag. Never really understood why, but the default browser is actually smoother on the TF101 than the TF300T ;)

Also one precision around ~45s in the video, as it might not be fully clear what I'm doing ;) I'm switching back and forth to the previous app with one keyboard override key

=> switching is instant as you can see.

Then launching Netflix which is also a very heavy app.

And an upcoming surprise for the most courageous if you stay until the end ;P

Overall here is my honest opinion on 4.4 Vs 5.1 on the TF101

:

- Default Launcher, desktop, system settings, status bar:

4.4 will give you higher framerate because the hacks I had done in 4.4 don't work in 5.1

5.1 also has more effects that are cpu hungry and our TF101 is too old to handle that, so you'll feel it.

For 5.1 you definitely need to switch to another launcher to regain some of the fps for these system parts.

Once you've done that it's not *that* bad seriously. (see in the video)

- App launch, switching between apps: 5.1 is faster

- General responsiveness: 5.1 is faster

- Global performance: 5.1 is faster

Someone posted a benchmark not that long ago and even if benchmarks are not all, you can see that we gained on general performance and are now over 20k on Antutu.

That's these 3 where I definitely disagree with you Piehti.

But that makes me think that you have a problem with either your install / storage / a specific app / a specific media that media scanner might be having issues with, hogging cpu or IO.

Things to remember on both 4.4 and 5.1 : the TF101 storage does lag under load. So if something on your tablet is generating that, it'll definitely lag.

So one thing to check is for example if you wouldn't have something on your tablet that 5.1 doesn't like (media, app, setting... )

(also remember that you have media scanner options / filters in settings, I really recommand to use them and have media scanner only scan specific areas - white list)

My best advice would be to restart fresh:

1) Make a backup of user apps with Titanium backup

2)

format

/data

3) install 5.1, make sure you install gapps from the 1st post and

flash supersu zip

.

4) Do not restore anything from your google account.

5) Try to run without your SD / MicroSD for a start too in case it's something on there that creates issues.

6) Then reinstall gradually your stuff fresh from the play store or Titanium backup (no system apps, only user apps)

If you do that I really see no reason that we would have a difference of performance up to step 5)

Going gradually in step 6) should help you find out what might be the thing that generates issues on 5.1

If really that doesn't change anything, I'll see what I can do about a 4.4 updated version, I ordered an extra HD that should allow me to keep more parallel version built. But that will take time to get back 4.4 into a building state.

I already have barely time to do more than maintenance for 5.1 lately, and I didn't expect to spend my Sunday morning on making a video either ;)

[MENTION=4895045]Piehti[/MENTION]: But it's actually a bit offending that you consider that giving me money would motivate me.

I know you didn't mean wrong, and sure it's nice to get a bit of $$ as recognition and thanks, I definitely appreciate that :)

But not the other way around: ie, I don't do it for money.