Big impact on site performance

Reecently ported site to VB with fresh install of vbseo. Noticed anytime we enable vbseo server litterly criples the server with usage spiking at 80%. Opened a support ticket very early today but over 12 hours and no reply as of yet. Without vbseo enabled our average is 10% spikes to 40%. On a dedicated server.

We belive it is due to the re-write rules. I submitted what is working for another site vs what we are running. This is now the newest attempt:

# Helicon ISAPI_Rewrite configuration file
# Version 3.1.0.58
RewriteEngine On
RewriteBase /forums/
RewriteCond %{HTTP_HOST} !^www\.MySite\.com
RewriteRule (.*) http://www.MySite.com/forums/$1 [L,R=301]
RewriteRule ^((urllist|sitemap_).*\.(xml|txt)(\.gz)?)$ vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1
RewriteCond %{QUERY_STRING} !vbseourl=
RewriteCond %{REQUEST_FILENAME} !.(jpg|gif)$
RewriteCond %{REQUEST_URI} !(admincp/|modcp/|cron)
RewriteRule ^((archive/)?(.*\.php(/.*)?)?)$ vbseo.php [L,QSA]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !^(admincp|modcp|clientscript|cpstyles|images)/
RewriteRule ^(.+)$ vbseo.php?vbseourl=$1 [L,QSA]
#RewriteRule ^(.+)$ vbseo.php [L,QSA]
RewriteCond %HTTPS on
RewriteCond URL ^/(?!images).*
RewriteRule (.*) http\://www.MySite.com$1 [R,I]

At the moment we have no clue as to why the massive performace hit thus VBSEO is disbaled until we can figure this out.

Responded your ticket