Slow Website everything is slow on the site. Admin pages, main page etc

My website is running very slow for some reason. I have other wordpress sites that are not slow. This is running Upfront with Spirit theme, not sure if that has anything to do with it or not. This is a new site running on php 5.5. I did install W3 Total Cache but that doesn't seem to help. I am going to go ahead and give support staff permission to look at it.