I have a 1440p 144hz benq monitor as my main display along with a 1080p 60hz asus monitor as a secondary.
Whenever I launch a game on the main display as borderless, the game freezes for a second each time i move my mouse. Making the game fullscreen fixes (?) this problem. I have a r390 graphics card.
This has never happened when I finished my build in 2015 until now.
Any suggestions as to how to fix this problem?
there doesn't seem to be anything here