Could be a one off, but I ran into a problem with a steadily worsening FPS rate. It started causing some bad screen tearing and ghosting artifacts when moving around.
Important to note, I was playing in fullscreen, and I think alt-tabbing could have caused it, or made it worse, at least. I also have a high refresh rate monitor and a 2k resolution, so unsure if playing in fullscreen with my specs resulted in an issue.
I can confirm that it wasn't a memory leak, as the game was still only using ~700MB of ram.
I normally wouldn't mind needing to restart it now and again, but with the lack of saving it's obviously a little more annoying lmao