After upgrading to 2014 it seems that the MTA http port is REALLY slow to respond to requests, it takes about 2 minutes for a page to show up when accessing it with a browser.
So slow in fact that the monitor service will spawn a 2nd MTA occasionally while the original one is still up and running. The Admin page will also take a very long time to either show a red or green dot for the MTA.
The MTA itself is doing what its supposed to just fine, there are no delays in emails.
Not sure what is going on.