It's fair to be disappointed, though. There ARE serious issues here. The game can be made to run acceptably (I went and dug up a comparable card to your 2080 and yeah, it's a 1080p30 game there, but it works). That takes significant fiddling in their advanced menu, and there are significant visual compromises to be made.

At the very least, their default presets should have been tuned differently. That would have been free and prevented the whole "it runs at 20fps on my 4090 on low" frustration with no additional development effort. Not to say that they shouldn't be patching this up a LOT going forward, but they had tools to mitigate that they're not using, which is very confusing.