Take a look at this thread

http://www.aeriagames.com/forums/en/viewtopic.php?t=1809589

The software CCleaner should particularly help with lag issues because it cleans up your internet cache and registry.

That's not lag mate, your ping is excellent compared to the others, the higher the ping the worse lag you will get, like mines 180 when i connect which don't help :/

I believe what this person is reffering to is that everyone in the game is lagging... And yes it does appear that the majority of B2F's players have a ping of 100+ most of which reach 300-400. I have also seen people who have spiking pings and it makes their character teleport, needless to say it is very annoying x3