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Windows RT touchscreen responsiveness can be increased with a little tweaking

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Eliminate Touchscreen Lag From the Surface With This Tiny Hack
Microsoft Surface RT owners, here's a neat trick you can try. Apparently, someone has discovered that by tweaking the Windows registry, the responsiveness of the tablet's touchscreen can be increased noticeably. That happens at the expense of a (probably marginal) drop in battery life, but the hack is still worth trying since it is reversible. Care to give it a shot? Okay, so make sure your data is backed up, then read on to see how the magic happens.

To adjust the responsiveness of a Windows RT tablet's touchscreen, one must access the system registry using the Regedit tool. Now, in case you don't know what that's all about, you should probably just ask someone with the right experience to do that for you, or just don't tweak anything at all. Once you're in Regedit, find the following key: "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\TouchPredict ion". Then change the "latency" and "sample time" values from 8 to 2. Other values should probably work as well – the lower the digit, the better the responsiveness should be. Give your tablet a restart and feel the difference.

In case you're hesitant about this hack, you should probably check out the thread over at XDA Developers where people who have performed it share their results. For convenience's sake, there's also a file over there available for download. You can just inject that into your registry instead of modifying it manually.

source: XDA Developers via Gizmodo

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