Unfortunately it has nothign to do with the chat. It is the server not being able to keep up with all the database transactions.
I'll try to optimize it, but I can't promise anything. If you guys give me more details on what exactly happens that would be very helpful.
I'm assuming a lot of you are getting those annoying messages with two buttons?
In other words I doubt I can make it faster (this is limited by the server), but perhaps I can make it "less annoying".