I did try the new driver on both 8.1 and 10 and had multiple crashes in both wow, hots, and dota2...
had to reinstall 8 this morning and go back to the old driver to avoid this ..
Id edit but doesn't show on my mobile view so reply to myself it is yay lol...
Maybe check out this http://www.thesycon.de/deu/latency_check.shtml to monitor the latency of the unit, you can
try increasing the voltage on the GPU alittle that helped in the past. Have you tried Sweetfx or ENB Series? Both
use custom dll injections which you can edit yourself and may help with performance. Hope this helps.