Computer specs:

Processor: AMD Phenom II x4 965 BE 3.40 GHz
Video Card: Evga GeForce 560 ti 1 GB
RAM: 8 GB DDR3
OS: Windows 7 Ultimate x64
Video settings: 1920x1080, PostProcessing: On, Graphics quality is on the highest

I just bought the Talay mining complex dlc, and as soon as I started the first wave, it started glitching like every half second, sort of like a slight fps drop...
I also was getting like 8 fps towards the end, and that isn't right for sure...

Anyone else experience a lot of lag on this map? I know my CPU can handle this game very easily as I can play sc2 and Skyrim pretty well. (just video card slowing me down now)
My video card is very nice as well, but it could be better but should easily handle this game on the highest settings.

Any help is much appreciated!

That is wierd....

My specs are almost exact same as yours exact i have 16gb or ram and a ati 6850.

If anything i would try turning the resolution down just to see if its your system that can't keep up.

If that has no affect it could be your internet speed isn't fast enough to keep up with the amount of mobs that spawn.

well since the game is client side, i dont see how it could be my internet

Im pretty sure no matter what resolution setting i set, it doesn't help, so almost certain its not my computer

Figured out it runs like 300x better without archer minions...? Not really sure why, but i guess ill refrain from using archers for now (yea... right...)

Also, I just started my comp up and started dd and had like 3 fps on the main menu, restarted my computer and it went back to normal, so.... idfk