overachiever on "[Plugin: W3 Total Cache] Site got slower after using plugin with Amazon Cloudfront"

I noticed that my site http://www.addisonsandoval.com got slower (Pingdom tools) after using your plugin. I was really looking forward to implementing this plugin with other sites if I saw a dramatic difference in speed but to my chagrin that dramatic difference went the opposite way. Looking forward to hearing your expert take.

Thanks

http://wordpress.org/extend/plugins/w3-total-cache/