Freesync and gsync are overrated.Although I've been thinking what that experience would be like using an all amd build with a Gsync monitor lol.
ex: take your current monitor, flip gsync off, flip vsync on, and push your fps over 90. It is unlikely you will notice the difference.
on some monitors* they have additional low latency settings that can be toggled on when gsync/freesync is turned off. If yours is one of these you could get improved results flipping gsync off. ufo** test results get interesting.
*looking at you samsung with your pwm strobing