I have had major issues with go daddy this week and previous week. I called them to have them assess it. It was intermittently not sending data for 20 seconds. They admitted recent problems with load balancing on the grid servers. It has seemed better for me since, but you should definitely call go daddy then.
use webpagetest.org to see how to improve your site.
Although, it showed me 10 seconds until first byte of data got there. It's a problem with your host, but improvements on your site can be made after that. I would compress your images.
