MYSTIQUE theme takes AGES to load home page!!

I am currently developing a site using MYSTIQUE theme, but the problem is the speed it takes from clicking on the search results if I google my site, and showing any sign of my home page. My site is http://www.sealyspeak.com.

I have checked with Blue Host that the server is running fine, and it is, they even said my site loaded SUPER FAST, which I just don’t see.

I use Firebug and Yslow, the Yslow gives me an A at the minute, asks me to make less HTTP requests, but this is common in Mystique, and askes me to Gzip more files. I have WordPress Gzip compression as a plugin, but it does not seem to be zipping all files. Can you set this manually? I use W3 Super Cache also…

In NET on Firebug I can see the loading times,but every time I check it changes!

It has become a big problem, as when I google my site and click on it takes about three seconds to leave the search results and start to show any of my page. I don’t understand why it stays on the search results page for so long before loading? Even if I could make it go to the home page and load slowly from there, it would be a start!

I have added some CSS and HTML Divs to the theme on the right above the widget bar, apart from that, it is pretty much untouched.

Any help on this issue would be very helpful!