I recently got the Witcher 3 but I'm noticing that my gpu usage when running the game is very low (around 20%). On 1080p, medium to low settings I get around 50fps with lots of dips and stuttering. I don't think its a cpu bottleneck because my cpu only sits around 50% usage and when I try increasing the resolution my fps goes down and my gpu usage doesn't change much. Also, all of my components are running within their normal operating temperatures. Here are my specs; Intel Xeon W3690, 24gb ddr3 ram, 240gb boot ssd, 2tb 7200rpm game drive, evga GTX 1050ti, corsair 750 watt psu.