Hey, you know that Windows RT could run mac now and it is jailbroken. One more tweak for you to reduce the response lag of your tablet. And this is a registry edit.
We recommend this only for intermediate or advanced user(as its a regedit). Do backup your important files here, as sometimes things may go wrong!
Ok, here we go!
Step 1 : Go to the Registry Editor (hit the start screen and type “regedit”).
Step 2 : Find the Key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\TouchPredict ion
Step 3 : Reduce the “latency” and “sample time” entries from 8 to 2.
Ste 4 : Restart!
Cool, and its done for you now! This hack seems to increase performance of all touch aspects of the device and doesn’t seem to have any negative effect on your battery. Thanks to XDA developers!
Source : XDA