hello and welcome to TSF
this problem is due because the games are running at a resolution not supported by your monitor or even a wrong refresh rate
try to lower the refresh rate of the monitor
control panel
under appearances and personalizations choose adjust screen res -> advanced settings -> monitor
choose a lower refresh rate (like 60 hertz)
also to make sure that the problem is from your monitor, take a screenshot of the game (press Print screen from the keyboard while the game is running)
minimize it, open Paint and choose Paste to see the image you just captured
this problem is due because the games are running at a resolution not supported by your monitor or even a wrong refresh rate
try to lower the refresh rate of the monitor
control panel
under appearances and personalizations choose adjust screen res -> advanced settings -> monitor
choose a lower refresh rate (like 60 hertz)
also to make sure that the problem is from your monitor, take a screenshot of the game (press Print screen from the keyboard while the game is running)
minimize it, open Paint and choose Paste to see the image you just captured