Originally posted by midnight:

Originally posted by Karumati:

580 is low end gpu, and also this game in not optimised yet too.

its an 8 gb vram gpu. it is 60 fps in every game on ultra/high with 60 fps on full hd i dont think its an low end gpu

Switching to windowed mode instead of fullscreen greatly improved performance on my computer, which is quite similar to yours : i7-4790k and GTX1060.
I get between 60 and 100 fps.

8GB of VRAM doesnt matter here and let's be honnest : that setup does NOT run well very recent AAA games on high / ultra. The comparison with Valheim is irrelevant anyway.