Got alot of ghosting on my oled, does anyone know why?

Asus xg27acdng 360hz oled 1440p, ive had it for about 5 months and played cs2 without really noticing it but the other day I noticed the ghosting and now I really can't unnotice it, I assumed it was just normal until I saw people saying that you buy oled primarily to get rid of ghosting, I thought maybe low stretch res was the reason as I was playing 1280x960 but it's still just as bad on native. There aren't any overdrive settings or anything like that on the monitor, I turned off g sync and vrr when I first got the monitor (would that be why?) im using the dp cable that came with the monitor so I assumed that it would be high quality and that wouldn't be the issue, can anybody suggest anything that maybe my dumbass didn't think of, would hate to be wasting my monitor if Ive got a setting on that makes it dogshit