Interesting. I have a similar setup (R9 270X, i5 3470, 8GB DDR3) and I'm also getting extremely bad fps. Only 1-5 fps everywhere, even on LOW. It didn't seem like I could disable AA in the game completely, though? Minimum setting is 1.
Meanwhile I can play the game on my laptop with a geforce GTX 960M with only minor slowdowns in busy areas...
I'm getting 1-5 fps from the very start of the game. Managed to get past the introduction to the small boat interior, but still only 1-5 fps. Makes no difference whether I pick low or high display settings. Must be something going on - hoping for a quick fix so I can play!
I've installed the latest AMD Radeon drivers, restarted PC and the game multiple times to no avail. Running from GOG Galaxy.
Attached dxdiag file.
Specs:
i5-3470 @3.2GHz
8gb RAM
Radeon R9 270X
Snerra_PoE2_DxDiag.txt