My CPU (Corei5 4690, 3.5Ghz) is at max on a load of 50%, in some areas much lower.
Ram usage of the game (alone) is mostly at around 1GB, at max 1.3GB (although I expect the final game to use more anyways).
Both is very efficient in my opinion, but now my GTX960 4GB is only able of maintaining 30FPS (with only very rare spikes to 60FPS) while the GPU is running with full clock and load of 80-100%. Given that a GT460 is minimum requirement, this graphics performance is massively bad.

Things I tried to improve performanc to no avail:

• Graphics driver update
  
• running without Steam overlay and also completely without Steam directly via the SilentNight.exe while monitoring the FPS with Fraps instead the Steam overlay
  
• setting the launcher to fast instead of basically anything else disables VSync, which might give me some more FPS but doesn't change anything on the fact that it won't reach 60FPS (also there is massive tearing inside the chutch)
  
• setting all grapical setting in the game to off, which also only lowers GPU-load by a little bit

Is the graphics performance for everybody so bad.This game certainly isn't a graphics blockbuster, so that a GTX1070 would be realistically required to possibly get stable 60FPS at 1920x1080.