I have the asus pg348q 3440x1440 100hz monitor. and since i bought it a year ago. Im facing a weird problem. when my fps drop i feel it. even if it's 2 fps drop which im not supposed to feel it. like 2 frames per seconds shouldnt have any visual effect on the game. So after trying a lot of troubleshooting including reformatting my pc and clean installing my nvidia drivers and even i tried turning off g sync and playing with my fps uncapped i still felt the effect. till yesterday i decided to turn off the OC for my monitor and play on 60hz which it's the native panel for my monitor and surprisingly even though i dropped in fps i didn't feel it and the game was playable. What could be the cause of this?