Only 8 core cpu????? you need a 256 core cpu to run swtor at 60 fps. Jokes aside at first glance your system shouldnt be under 60 fps in wz. That said the engine is being optimed in the next patch (should be around in 2 - 4 weeks).
Its not 8 CPUs.
Its a hyperthreaded quadcore.
But yeah, that pc should have no problem with this game.
I have the same processor @ 4700 mhz and a gtx 590 and 32 gig ram, and i get fps drops too. Drops down to around 30 on fleet, with everything on low.
Well, im not really bothered by it anymore, since i have cancelled my account.