It looks like the biggest culprit is poor or non existent lod’s on the models. Strikes me as odd though as that’s a pretty basic art requirement for a game like this. I don’t see how this took them by suprise.

I guess the good news is that’s it’s easily fixable. It’s not like ksp2 which looks like it has some pretty unsolvable core issues.

I read up until the part where it’s using unity HDRP. I haven’t found a way to make that perform remotely well on any hardware they should have just stuck with URP or legacy. The only thing HDRP even gives you on top is volumetric lighting and you’d be better off writing your own or using an asset with how poorly HDRP performs.