Either you have something seriously wrong going on with your setup or you're trolling. I'm sorry, but I'm going with the latter on this one.
Computer specc http://i.imgur.com/TjBDa.png
FPS in lower left corner http://i.imgur.com/QX1ga.png
And that FPS is on a good day. Usually got worse when roaming "crowded" areas.
So please, refrain from calling me a troll, i'd be much happier if you could provide me with an idea on how to fix this problem.