Please help me! Months ago I encoutered no problem, everything ran smoothly without any change in setting, but now when I play in borderless or full screen, somehow the FPS decrease and it make my game become somthing like slow motion, I don't know why and how to fix this issue. I turn off everything that is not necessary but still encouter this annoying problem, I also tried to find out if this problem come from my laptop, but I didn't get any idea. Anyone can help me ?