Not sure if it's why... But generally all games i play I can get in(blame others for not being able to connect and making us go through the hang/cycle) are fine.
The only ones that I experience any lag are people with 300+ ping... And generally when I ask very nicely it's people from halfway across the globe, I live in the USA. And maybe since its more p2p then server hosted that is why it is sluggish if you are connecting with USA people, I would assume they see the exact same thing.
Again not sure... But only slow games with lag are from people far away, while the other USA guys tend to have sub 150ping...