I receive frequently timeouts when launching the new "notes received" functionality: http://beta.musicbrainz.org/edit/notes-received

The message is the following:
Request Timed Out
Processing your request took too long and timed out.
It may help to try again by reloading the page.

This occurs also at times when the site does not appear to be overloaded and this is then the only time out I receive.

Some optimization in the code or additional db indexes may be needed for this new functionality to work properly.