Game using too much GPU. Even being on medium, the video card heats up a lot. And that only happens with THIS GAME. Apparently it's still not optimized enough. And the graphics aren't that good to do that with the video card. A lot of bad and low quality textures, for a game that looks so beautiful. The floor, then, is not even mentioned. Shameful. The rock-breaking mechanic... horrible. Not to mention it doesn't even have any animation.
Ah, but the game is early access, it will get better. I hope so.