I should have replied sooner, sorry. Damien I ran through that list that you linked for.... I don't know what they are called..... computer speeder upers. It has drastically improved my gameplay. Thanks to everyone to replied, I appreciate the help.

Hey I am not even sure if this is the right spot to post this, and sorry if it is not. But here goes. I am playing a Mac desktop and have installed Windows Ultimate 32-bit OS through BootCamp. I use an IntelCore2 Duo CPU @ 2.66GHz with 2 GB of RAM. Honestly I don't really know what all of that means. So when questing open world i get frequent lag spikes and find that waiting in the same spot for a while and then going helps a little bit. And forget about running around on Republic Fleet. However lucky me, I do fine in Warzones but my open world PvP is definately slow. I have done all the obvious fixes; turned off shadows, bloom etc. Lowest graphical settings and am on Fullscreen(windowed). The windowed bit seemed to help a little last night. So my question is can I replace my video card or something of the sort to dramatically imrpove game performance? If so please be specific as I am not great at all this stuff. Thanks for your time.