[Sprint HTC EVO 4G LTE] adma84:
I know there are a couple posts out there on how to fix this, but this is one of the most legitimate ways to fix the multitasking issue we have all come to know and hate on Android devices running Sense. If you don't want to install a whole new ROM, such as MEANROM, you don't have to! This is a small guide to using the V6 SuperCharger script by Zeppelinrox. I know the amount of steps seems like a lot, but it's really not that many. Most of the steps will be followed by just reading what you see on the screen and accepting the recommended option!

So, everything you need to know or want to know can be found at Zep's original thread here. There is a lot of information, and because he is so technical, I think that sometimes his instructions can be hard to read for some, so I thought I would put together a VERY SIMPLE GUIDE to give you guys a hand. You can find the best instructions from him under Installing/Using.

http://xdaforums.com/showthread.php?t=991276

On to the instructions...

How To Use Supercharger

Please only proceed if you are rooted and have busybox

Download script manager from the market: https://play.google.com/store/apps/details?id=os.tools.scriptmanager&hl=en

Download zep's latest V6 Script (V6_SuperCharger_for_Android-Update9_RC11_Test_6.sh.pdf): http://xdaforums.com/showpost.php?p=18703418&postcount=5021

remove the .pdf extension (should now end in .sh) and place on your phone /sdcard (you can use rom tool box or estrongs to rename the file)

At this point, I highly recommend you make a nandroid through TWRP or CWM. The script has a built-in undo feature, which works well, but I still think we all know this is best.

Open up Script manager on your phone. Make sure to check 'Browse as Root' Option

Navigate to the location wher you placed the V6 .sh script

Click the Skull/Crossbones to run as root. This should turn green. NOTE: DON'T USE THE BOOT OPTION

Hit Run

At this point, get ready for an onslaught of text. Don't be afraid and try your best to read even though much of it may not make sense!

You may be asked about your launcher. Answer the question correctly for your setup.

Any time you are asked to press Enter, go ahead and proceed. This is the last time I will tell you to hit Enter for most occasions.

Pick your scrolling speed. I recommend slow or normal the first time you do this, so you can keep up.

On the kernel panic screen, I recommend choosing the Rock(H)ard Option, so hit H and then enter

Accept the Misc and 3G tweaks by hitting Y

Feel free to keep or disable the annoying animation (the scrolling V6 at the beginning of the script)

Hit Y(es) for SuperMinFree Calculator settings. This is an automatic calculation. You can change this later when you get more confident. Many will choose the 1000HP option for our phone (based on available memory)

It will now backup your build.prop and some other system files.

ICS and newer Android services store a lot of the memory tweaks in services.jar. This script will now take you through an ICS patcher. Accept the Automatic Transmission. This will upload services.jar, and download the patched one.

It will eventually tell you that it needs to wipe your caches and restart. You will definitely want to do this. You will need to wait 4-5 minutes while it rebuilds your Dalvik Cache

Almost done! After your phone boots up and stabilizes, go back into Script Manager. Navigate to /data/99Supercharger script. Check the SU (skull/crossbones) and check the boot option.

Reboot your phone and now your phone will run the supercharger script on startup. If you ever want to verify that your script is working, or if you want to mess with any of the extra options (including removal), run the original V6 shell script you downloaded as root, just like we did at the beginning. This will tell you if you are 100% optimized and give you a whole menu of options to play with!

I can actually open multiple apps now and go back to the first one without it having to reload. Waze is the best example. If I ever switched out and then back, it always had to reload...not anymore! Again, this all seems like a lot, but it's really pretty easy once you give it a shot!

Let me know if anything is unclear so that I can adjust this OP to help others.

Make sure to give Zep a 5 Star Rating in his OP and also give him thanks, he is the man!