Hello guys, so it seems like my frame rates drop after playing for like 2 hours. Lately I've been playing Witcher 3 a lot and I've noticed that when my PC has been running a few hours my FPS begins to drop.
It started happening in last two days. I'm wondering it might be due to the last driver update but I'm not sure. When I boot up the PC and start playing it's ok, but after playing for like 2 or 3 hours the game begins to stutter a lot. FPS is dropping from like 75 to 50. I've also noticed that it mostly happens when the GPU is under 100% utilization in CPUID HWMonitor. I use Win 10 Home and my GPU is MSI GTX 1060 6gb. I've also cheched the temps and that seems to be all right. So guys, please tell me what is wrong with my PC? 

