For example...I cant run it borderless because my screen will start flickering and everything else (like watching a stream besides playing) is stuttering and lagging.
I also running with two screens but it was fine before so thats not the problem either.
It was completly fine before the patch... so i'm forced to play with 60hz and with 60fps on a 144hz freesync monitor... really fun...
I could use the "fix" but i think the risk to getting banned for that is to high.