Obs Dropping frames when preview is on !


New Member
Hello , I've been having a problem recently with obs .
When the preview is on I get frame drops if I'm in game (windowed or fullscreen ) but , if I disable the preview drops never happen and game fps boosts and this happens even when I'm not streaming or recording just running obs and the game .
My main monitor is 75hz and 2nd is 60hz , is this the reason or something else .

If any one needs more info I can give more .