I’ve tinkered with the performance improvements FAQ. I’ve had the game running flawlessly with settings. Seemingly randomly (maybe a windows update?) the FPS has intense micro stutters. I can’t pin point it. A week ago, the game was running smoothly. Now it’s not.
I’ve been away from home for a week and my PC has been off. Updated my GPU drivers to the lates (Radeon 22.7.1). Didn’t fix. Tried the Borderless/Fullscreen swap, no fix. Has anything changed in the last week that I can look into?
I have a small number of complaints from other players with issues of a similar nature, and it seems to correspond with a recent update to the Steam client, which I’m currently looking in to. You could also try disabling In-Game Voice Chat and see if there’s any improvement.