Maintenance for the week of May 18:
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· [COMPLETE] EU megaservers for maintenance – May 18, 8:00 UTC (4:00AM EDT) - 13:00 UTC (9:00AM EDT)
I agree...I think sometimes lag is server side or even on your ISP's network, but make sure you have a decent video card as well, or run dual cards like I do. The other system specs you mentioned sound fine.
Also agreeing with above comments, upgrade all drives(always). Go right to nVidia if you have a card that uses their drivers. They just released drivers not long ago that greatly improve performance for many games.
Another thing has has helped me with many games is a solid state drive.
Also, some people never seem to like to turn off their computers. A reboot in those cases fix MANY issues.