[Bug] Game locks up briefly when navigating multiplayer menus.

The game UI freezes for a few seconds when you navigate the multiplayer menus such as clicking on Pantheon or "Multiplayer" or "Custom Games" or "Refresh" (custom games).  I'm worried that it's doing some kind of blocking connection which means if a server is down the game will lock up completely at those points.  Preferable would be a non-blocking connection of some kind with a dialog that you could cancel instead, so the UI didn't feel so choppy when navigating.