In the past week my game started to constantly screen tear when v sync is off. I play on a laptop and have played fortnite with vsync off for months with no problems whatsoever. It says that my fps is at a constant 60, but that is definitely not the case. When i turn vsync on my game runs really smooth again, but my mouse feels like its a second behind. if anyone has any ideas on how to either get rid of mouse input lag or get rid of screen tearing when vsync is off I would really appreciate it.