After installing Bad Behavior 2.0.14 (and it works great, by the way), I noticed my dashboard slowed to a crawl. For a few days I thought it was just my host traffic, but then I started to investigate. Using Firebug's NET feature, the offending file is wp-admin/admin-ajax.php that is loading in 25-30 seconds.
when i finally thought of disabling BB - admin-ajax.php loads in normal time and the dashboard drops to about 3 seconds. I was not running BB in strict mode.
what exactly is the problem between these two - and are there any hacks that might help out? After BB (with akismet), my comment spam seems to have stopped completely. I dont want to giveup BB but the dashboard is certainly a pain in the butt..