Yes, folks, the Registry is back! After years of tweaking almost every aspect of it on Windows Mobile — and repose years with Windows Phone 7 — you can get back to your usual Registry tweaks. For those new to this, it’s a rather simple procedure but it could mess things up if you are careless (insert word of warning here).
Modifying a Registry entry on the Microsoft Surface has been confirmed to improve touch-responsiveness. To achieve that you need to navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\TouchPrediction and edit the key for latency from 8 to 2 as well as the one for sample time the same way. You can edit the registry the same way you do it on your Windows PC, with the help of the regedit app.
This will increase the polling interval and it could decrease battery life subsequently. However, those who have applied the hack confirm it is working without noticeable impacts on battery life. Don’t forget to restart in order for changes to take effect.
Source: XDA Developers