I have a 3 monitor setup and recently changed my gtx 1060 with 6800xt. When I use Opera GX, I always keep it on max window on 1 monitor and do my other stuff on the other 2. After I change my gpu, especially on max load on gpu, sudden fps drops, lagging issues occurred. at first i thought this because of a gpu driver or faulty card problem but then I found out when I don't use GX on max window size, everything is smooth as always.

tried everything that comes into my mind - disabled all the plug-ins, background sounds, increased/decreased/disabled ram/cpu limitations, the only solution for me is to use it on not-maximized window. manually scaled it to fill the monitor. also forcing dark theme has related with this issue cuz some web pages stop responding when it's active but disabling it altogether doesn't solve the problem I mentioned above entirely. I thought you guys should know.

gg