Problem with CAVS and USAGE

Hello i love comodo and i am using both firewall and Virus. the current CAVS (beta) runs really good but push my system performance down! i don’t understand CAVS using when it’s running 18 MB RAM that’s ok. So i don’t understand why my system runs so slowly when iam using CAVS can everybody gives me workaround…Shoud i disable uneeded options in CAVS?? the HIPS Tool is very very cool but when a application is trying to start i am promt to send the information to comodo…how to disable these?