Cheers a bunch for playing it - it's a hard game, I commend that you're continuing to try!
As for performance, aye, constant battle, trying my best to keep performance as smooth as I can, I'm not letting it go under 144 on my system (RTX 4070, 32GB RAM, Ryzen 7 5700G), but I can imagine it can be touch and go depending on hardware. Been trying to test it on my wife's laptop to try to keep it running at least reasonable, but there's always more optimisation to be doing.
Again, cheers for trying it, keep at it - if you want some guidance, there's a winning run replay I did that should (hopefully) function if you download it and move it into your replays folder.