Yeah I have the same exact problem. I have the latest 1701 BIOS update and anytime I come out of "sleep" mode any game drops to about 2 FPS after 15 minutes or so.
When I restart my computer, the problem seems to go away.
If anyone has a solution for this, please post. Otherwise I hope they come out with a fix for this quickly.
A $1400 gaming laptop should NOT be having this annoying problem. Specially considering its the ASUS brand.