Another thing that’s always bothered me about Gears 4, is how Nvidia Control Panel seems to not even recognize it properly. I hate when games’ icons show up as a generic application icon in there. At least some of the program settings don’t work for it also.
I turn fast-sync on for Overwatch in the 3d program settings, and leave v-sync off and frames unlocked in-game. You know fast-sync is working when it locks the fps to a multiple of your refresh rate. My refresh rate is 60hz, so it locks it to 120 or 180 fps, and will jump between the two.
Turning fast-sync on in the program settings for Gears 4 does nothing. The fps will just go wherever it wants if I have it unlocked in-game. I luckily don’t get much screen tearing, but it’s annoying that the game doesn’t seem to even work with Nvidia Control Panel.