I have the same issue as OP - just posted on Steam forum too.
Same specs, but with GTX 1080.
I am a new player, new install, new game - 10-20 fps in game, no matter what settings or game res I have set.
I can't get more than a 1 minute into the tutorial as the low fps just kills me 😞
Please Devs help a guy out!
- Ardrich