I dont know if these will fix any issues, I have none playing swtor myself. But its worth a shot for people having problems with nivida cards and swtor. Make sure you get the correct version for your OS. That link is for Win 64 bit. You can search for the other Windows flavors from that link if you need too.
http://www.geforce.com/Drivers/Results/41048
Im going to install when i get home to see if i get any better performance with swtor myself.