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Originally Posted by webizen

It is for security.

http://www.litespeedtech.com/php-litespeed-sapi.html

since you have suEXEC disabled, you can leverage opcode cache as well as LSWS build-in cache (http://www.litespeedtech.com/support...ache:vbulletin) for vbseo performance improvement.

I have XCache, Memcached and Litespeed Cache installed. I have VBSEO configured to use Memcached since it can't use XCache if it runs from the command line.

None of that helps. When the site is busy and there are 6 - 7000 people online the site lags and the load increases and it's always because of hundreds of vbseo.php processes.

The server has 24GB of RAM and and Quad Core E5620 processors.

Out of all the mods installed on the site, only VBSEO runs as an external application. Why?