CPU usage

Question / Problem

I have SmartPOP2Exchange installed with a 10 users setup. I have noticed that the smartpop2smtp-process is constantly taking up about 50% of the cpu. Is there anyway to lower this?

Answer / Solution

The SmartPOP2Exchange itself does not use much CPU but the included SpamAssassin does.
The CPU usage also depends on how much mails are processed (max mails setting) and how big your message are.