check out my steps on the other dudes lag spike issues those 4 steps will get rid of most of your ping. also you may need to do a disk cleanup and disk defrag.
I'll check your post. And I doubt I need a disk cleanup or defrag else I would get that latency problem on every other game.
Ogada, yes. When I open SWTOR my latency goes throught the roof until I either reboot my router, reboot my computer or unplug my internet. And it stays like that even if I close SWTOR.