The Jazz 2 net code really is bad. I have about 350-450ms at default and suffer some major lag.

In Aliens versus Predator 2, I get a higher ping (500-600) but it plays a LOT smoother and faster. I'm an alien, and that means that you actually have to run up to someone and hit them, not nice if you have lag, but I STILL manage to do it. Heck, it's even a FPS game, and it's supposed to lag like crazy compared to JJ2 (just think of the extreme amounts of info an fps game needs).

Oh well, there's your lesson of the day, go buy AvP2!