When someone submits a comment to our blog (www.tikkun.org/tikkundaily) it takes a really long time for the browser to refresh. The comment seems to get posted immediately, but the poster doesn't get his/her browser back for a minute or so.
In troubleshooting, we've discovered that when we turn off email notification of new comments, the problem disappears.
Has anyone seen a similar problem? And if so, any fix?