10606GB

Ive recently upgraded from a 760 to 1060 6gb and my frame rate barely increased when it comes to games. It still suffers from fps going from 100-20 constantly and stutters my game. Im not sure what the problem is, I'll list my specs below, I've had most of these components for around 5 years so...

My computer is pretty much running at 35% normal performance, this thing has a Gtx 1080 and the cpu is overclocked to 3.8ghz and I'm getting as low as 30fps on 1080p! I feel like this has something to do with Windows new fall creator update as I noticed this problem after getting it but not sure.