Make your Galaxy SIII more responsive
I had seen this tip awhile ago but finally got around to implementing it myself.
Disable the double-tap home button shortcut to S-Voice.
The response to a press of the home button lags with this on because it's waiting to see if you'll press the button again and change its response accordingly.
How to do it:
1. Open up the S-Voice app
2. Push Menu Button
3. Settings -> Launch S Voice (uncheck this)
4. (Optional) Disable Wake Up Command - saves battery life
Obviously, do this if you're like me and don't use S-Voice often enough to justify the constant lag of the Home button response.
You can always just leave a shortcut on your homescreen for the app if you do use it.
This makes the phone as responsive as you would expect it to be given the beefy processor inside.
Enjoy!
Originally spotted at XDA