more lag could mean any number of things, from your neighbor has a new cell phone or garage door opener and is interfering with your wifi signal. to getting matched with players in australia when your in Belgium. It could be the time of day you play, ISP or a network link somewhere in the world is over saturated. All you can do is fix your own network. After it hits the ISP you loose control of the traffic, but at least you did everything to make your set up the best possible.