Major stuttering when in fullscreen mode.

This seems to have started recently. Whenever I boot up the game, it starts out windowed, even though the fullscreen option is on. I have to go into the options, switch to windowed exit the options, then go back in and change to fullscreen again to get the game to enter fullscreen mode. However, the game starts stuttering in fullscreen mode.

This stutter does not happen in windowed mode, but I’m really uncomfortable playing in that mode.

I used to be able to run the game perfectly fine in fullscreen mode, so it shouldn’t be a hardware issue.

Does anyone have any idea what I could do to fix this? I have tried uninstalling and reinstalling the game a few times, but that hasn’t worked.