If you are still on ICS or Jelly Bean with your Galaxy Tab 10.1, it’s probably the time to consider updating to latest Android 4.4.4 + root.
For this purpose, you can try Omni ROM, which is closest custom ROM you will find to stock Android 4.4.4.
Also, Omni ROM brings several features to the table including customization options for your status bar, quick settings, navigation bar, Power Menu, and some more. You will also find Active Display, OmniSwitch, and some more.
For tweaking performance, you can use Omni ROM’s built-in Performance menu to overc