I’ve had the same issue, have just been too busy to fill out a bug report. Probably good idea to do an official bug report in that forum section if you get a chance
I don’t know what’s causing it, specifically, aside from the new patch. I have more than enough RAM, vid card, and processor speeds.
I’m on Win11, Steam, nVidia RTX. And I’ve only played SP skirmish games vs. AI since the new patch.
It’s a quick stutter/hiccup/hitch in the framerate at random times per game here. I notice usually one stutter/hitch every handful of minutes
EDIT: Might be able to clump our issues under the following bug report thread, even though it’s not exactly the same for me. They report lengthy freezes, while mine is just a tiny pause for 0.25 seconds or something.