You may find this article informative.
https://www.anandtech.com/show/10325/the-nvidia-geforce-gtx-1080-and-1070-founders-edition-review/13
You may be able to resolve the issue with buffering options.
Yea, that would be helpful above the refresh rate, like when I used to have a 60hz monitor and I was getting 80fps, Fast sync helped, but now I have a 240hz monitor and VRR goes from 60-240. I rarely go under 60, but I must admit it is annoying when I do. VRR range should go down to 40.Thank you!