Attention skinners and MT tweakers – Are your comments slow to post? In my quest to figure out why the hell my comments were taking longer to post than other sites I sort of stumbled upon an answer. When a comment is posted a bunch of different archive pages get rebuilt according to their Rebuild settings. The Individual Archive of the associated post is rebuilt as are ALL of your Index templates that are set to Rebuild? = Yes!
If you have a skinned setup or you’ve just created a lot of Index templates that are set to rebuild automatically; each will be rebuilt behind the scenes between the time a comment is posted and the time it appears in the comment popup.
With 5 skins broken into 3 pieces each (header, stylesheet, footer), RSS feeds, and others I had over 20 Index Templates to rebuild during a comment post. Doh!!! None of them needed to be dynamically rebuilt aside from Indexes that contain MTEnries tags and RSS feeds.
So have a look through your templates and turn off Rebuild on all but the ones that really need it. The speed increase should be noticeable, it is here at Wizbang.