our setups are quite similar, you obviously should be getting much better frames than that. Couple of things: Are you using AA ? Have you done a defrag lately, did you run driver sweeper before installing Cat 8.10? Is Catalyst AI enabled in the CCC ? Do you have Crysis patched fully? I am sure your problem lies somewhere in there. Good luck.
damn i didnt run driver sweeper = =
i some time use x4 aa
and haven't done a defrag
cata is enabled on standard settings