[support] Performance with APC/cacherouter

Hi, I'm on a performance issue. On my server (VPS/Centos/Plesk) I have performance issues. I'd cheched I'm not out of memory/CPU... I'd installed APC and configured it with cacherouter I'd reared some guides like this http://drupal.org/project/cacherouter http://buytaert.net/drupal-5-performance But now my system is working well when serving cached sites (i tested it with ab) but sometimes the homepage is still served very slow (10/12 seconds sometimes). I assume it's when cache is created? The site I'm testing on is http://www.gravat.com The modules I use are CCK/Views/Slideshow/Ubercart. Thank's a lot! Pol Maresma PolNetwork.com / Serveis d'Internet pol(a)polnetwork.com msn: marolijo