Remember that you are not the only person who is building your group zone, there are many other players too as well. As far as I concert without the building limitations, I might overcharge the servers and would cause some future problem such as: FPS drops or more lag in-game. And I'm not sure either if you could ask that here xd
Well my bad then, did not know where could I ask that question lol.anyways, 150 as a limit feels too small, no?