Smartcrawl Impact On Page Load Time

HI:
Is there any way to lessen the impact of Smartcrawl on page load time?
I like Smartcrawl overall, but based on Goole's P3 plugin Smartcrawl represents 48% of plugin impact on our website.
I need to get the overall website's page load time decreased. I have Comet Cache and Hummingbird installed and setup.
Thank you in advance for any suggestions!
-Loren