High Sierra Lag Help

I have a hackintosh that is running High Sierra. I have an i7 7700k along with a z270 motherboard. I also have a 1080 ti with Nvidia drivers.

Basically, I'll be using safari and I'll have a video on the left side and then I search something on the right side. It'll freeze for a split second and then search and speed up. It's like the video lags, not only that, but I'll see it when I'm doing other things. Any advice on what to do?

I'm running NVIDIA Web Driver: 387.10.10.10.25.158 and macOS 10.13.3 Supplemental Update