If you have a piece of crap, make sure to put everything at medium or low graphics quality. That'll make it run smoother.
I was surprised however with how well it runs in comparison to other games that have similar requirements. I'm able to run all the graphics at the highest quality and still have the game run relatively well. I tune it down for online play though, to minimize lag.
Anyways, there's not a lot of traffic online since it's still a pretty new game, but we likely won't meet up randomly in the pre-game lobby. You guys let me know if you want to get a game together and we'll set a time.