Any of you running D4 in Linux through Lutris?

I'm currently on openSUSE Tumbleweed with Lutris installed as a flatpak from flathub.

The game runs pretty decently though I had to turn down the graphics a bit compared to what I can run in Windows.

After a while tho the game starts chugging and then basically freezes almost completely. I can still hear sounds in the background but the game looks like it slows down to like one frame per minute and I can't tab out or switch over to a terminal with alt ctrl F* either. Basically my entire computer slows to a halt and I end up having to do a hard pwoer off.

Anyone else having this problem?