MindFragged said:
Is this a common problem, or do I need to fix some things? I'm using an AMD Radeon 6770 HD (not exactly great, but not as bad as all that)
Anti Aliasing is probably your enemy, a 6670 isn't the fastest, but most games at 1080p and medium (or low for max fps) should be just fine. Turn AA off completely.
If it's still too slow, turn Anisotropic Filtering down to Bilinear, then off if needed.
After that, try turning texture quality down, also any dynamic lighting options.
After that, keep turning everything down until you hit min settings, if it's still running badly, something's probably broken or needs updating.
Alternatively, start by setting every graphics option to it's middle setting and see where that leaves you.