HUGE performance degradation with Defence+ turned on

My development system - Vista x64, Apache 2.2, php 5.2
After last update of comodo (maybe) the performance of web server becomes extremely low. Pages from few seconds have been loaded for 20-30-60, if not timeout. After few hours, reinstalling apache, php and ideas to reinstall whole f**** system… i turned off defence+ and web server starts to serve my pages again for few seconds. Turned it on => 30+ seconds. Don’t know bug or what, but this really ■■■■■■ me off.