slow loading pages and backend

Hello,

Hopefully someone can point me in the right direction. More often then not my wordpress installation and all the subsites bog way down to a crawl. Sometimes it takes the pages up to 5 minutes to load. Other times the pages load lightning fast.

I’ve talked with my server and they tell me everything is fine on their end.

I recently added WP-Tuner to my plugins and activated it. I was able to catch a slow load and took a screenshot of the information that it provided.

http://faceforwardesthetics.com/files/2010/04/wp-tuner-large.jpg

I honestly have no idea what the information means and am hoping that someone can help me out so that I can get this issue resolved.

Thanks!!!!!!!!!!!!!!!

Courtney