If you feel your newly bought 144Hz monitor is lagging because when you move the mouse cursor, it leaves a noticeable ghost trailing effect that usually appears in a 60Hz monitors. You might think that your monitor has a problem or sort of. Well, it is not your monitor who has the problem or you didn’t use the exact cable to activate the 144Hz.
The problem lies in the Mouse settings in your Windows OS. In Windows 10, the option Display pointer trails set checked as default, which gives the effect of a ghosting trail which you think it’s your 144Hz is not working.
To fix the Mouse Pointer Ghosting in 144Hz monitor, you need to disable the Display pointer trails.
You can do this by going to the Control Panel > View By Large icons > Mouse.
Then go to the Pointer Options. Then at the 3rd row at the Visibility, uncheck the Display pointer trails.
Apply the changes and you’ll notice your mouse cursor is now smooth and has noticeable difference with the 60Hz monitor and 144Hz monitor when you do comparison side by side.
Fix mine, I have that off on a 240hz display and it still ghosts.