We recently switched our big board from vB to IPB, only to discover that any thread/forum with 200-300 followers will suffer from posting delays when new users try to post to that thread/forum. The more followers, the greater the delay. A few thousand followers produces a 30+ delay on new topics/posts. http://community.invisionpower.com/...-follows-causes-extreme-posting-delays-r42623 This is likely why IPB defaults to having all notifications turned off. Does Xenforo suffer from the same flaws?