Hi,
Ask Fedora is still much slower than other askbot instances that I've used. Try askbot.org/en/questions, for example: comments are posted as soon as the user clicks. On Ask Fedora, there's quite a lag for posting comments/answers.
We shifted to django-postoffice to somewhat decouple the main application from the mail sending, but I'm not sure if this made a difference really.
The askbot log only has errors about icons: http://fpaste.org/37879/60667413/
I see quite a few errors in the httpd/error_log but I'm not sure if they're responsible for the sluggishness either.
I'm not sure where else I should look. Would someone have hints on how to go about diagnosing this?