However, with the current engine in place, we all remember ilum back in the day. It didn't matter what computer you were running, you would still lag hard with 20+ people together. I really hope this problem has been fixed, or else world PvP will remain forever dead in swtor.
Have you been on fleet recently? If anything lag is worse by a mile than it was back then. It sounds like a fun event, but the Mighty Hero Engine shall show no mercy.