I have a high refresh rate (120 hz) main monitor and a 75 hz secondary monitor. I play the game full screen on the high refresh rate monitor but it randomly locks to 75 fps when I'm ingame. I have a more than capable pc to push 120 fps (Ryzen 2600 and GTX 1070). The only way I've found to stop it from doing this is unplugging the secondary monitor. Anyone else having this issue or know how to fix it?