laggy

Hey guys, I was wonder if any body else was having bad lag in the campaign of HOTS, i have lowered the setting(pretty much all of them) and i have also closed applications and it still lags, I didn't have any problems with lag in WOL. So my question is any suggestions on how to get rid of the lag?

Any one play PS2 games online? I would love to play someone online. Let me know if you are interested.