Metro is a god awful game, very rushed and piss poor graphics for the demand if places on the hardware.
Don't worry, if you get awesome framerates on every other game, then I'd be a happy man!
I disagree. Metro may not be performance optimized but it doesn't sacrifice image quality in order to score a few extra performance points. There's no visual anomalies regardless of the complexity or depth of a scene; most games can't make this claim.