Sudden framedrops in 1v1/Training?

[Just Slavio | ELieUs]

Hi. I've been playing since launch just fine in all mods. So far only performance drop I experienced were in Hub, but I guess that's to be expected with all the monste... I mean avatars running around. World Tour and 1v1 worked perfectly fine.
Until today. For whatever reason all the things in Fighting Grounds just lag. The FPS are fluctuating between 60-41 making it pretty much look like a slowmo and pretty much makes the whole thing unplayable. I checked in Training, 1v1 with CPU, and during character tutorials/combo trials - didn't dare enter online matches with that performance.
I did file integration check pretty much right away, also checked other games if maybe it's my PC dying, but other things work just fine. After file integrity check I entered the game again, and the character tutorial and combo trials worked fine. But then I entered training mode aaaaand bam, FPS all other the place again. On all stages too - checked colosseum, street, Zangief's arena, Guile arena, and the famous training room. I then went to the World Tour to check, and to my surprise World Tour works just fine! Both when running around and fighting! I then lowered the options to the lowest possible and entered training again, but nope, again FPS around 40-50, no change on that end. I also checked my resources but they are in norm, GPU usage at around 40-50%, CPU at around 30-40% - which is pretty much the case since launch.
Any ideas? I'm getting to the end of things to do about it :/
Oh yeah my PC is Ryzen 5 3600 and RTX 3060.