Just to clarify things.

The Facebook integration didn't actually change anything to do with the game on the server or client side. All it did was add a new table in the database that connects Facebook Id's to user accounts. In that way it can't really cause lag.

There were a few problems on the Facebook launch and the following week. These issues have been fixed. I have been told that a few people still cannot start games after the Facebook launch and I am currently investigating. If anyone is having issues you can get in contact with me via support@stickempires.com.