Recently switched from an HDMI 120Hz output to DisplayPort 165Hz output. However, when i select the 165Hz option in Nvidia control Panel, the display starts stuttering(There is Vsync, so I don't know why there is still stuttering). So even with the Displayport, the max I can go to is 144hz . I have a laptop with a built in 144hz display... can this be the reason to why it can't output more than 144hz to the monitor?