Apparently there are issues with AMD processors - a patch has been announced that fixes a whole bunch of things, with both performance and gameplay issues addressed. So it's probably worth waiting for the patch before buying the full game if you're struggling with frame rates on the demo.
I'm still enjoying the game though, it runs very well on my system - I expect the patch will make it even more fun. I'm also hoping that some user made scenarios will start rolling out soon too - I've not touched the editor yet.
Bookmarks