The last page you sent is actually Facebook's demo page of Facebook Connect functions. We didn't do that page (though we'd love it if they used our component). If it's running slow, and especially if that page is affected too, that would mean there's something going on at Facebook HQ.
We're not seeing the issue on our demo sites or other ones we know of that use JFBConnect, but if you continue to feel it's JFBConnect, we can investigate further.
JBFConnect is very slow?
