PC specs: GTX 1080, i7 4970k 4.5Ghz, Win7x64 SP1, latest drivers. The game runs around 50-30 fps, at it's worse is flying on the surface. Have tried many solutions, the problem is the same at low or ultra settings. I think HG knew about the performance issues as the game upscales the resolution (to get close to native 1080p you need to supersample). Another problem, most of the time I was unable to save my game. The game would pause for a few seconds, show the 'process saved' logo and lo and behold, my progress was not saved when checking the options menu. Restarting the game would fix this, but as I progressed this problem became more common to the point that it happened after two autosaves. This game shouldn't have been released at this state or price, and will be requesting a refund with gog.
