I love this game, have played it for 2+ hours, it's just a cool little game, got it in a bundle, and really liked it.
But I find it doesn't seem to be... amazingly optimized...? My computer starts chugging when I play it, it gets worse than when I play something like Payday 2 or Black Mesa and those are reasonably heavy games.
I find my computer getting really hot and struggling to keep up, and it uses quite a lot of my cpu.