Extremely slow site!

Can anyone tell what's going on here?

This is a new WordPress installation, one-page site. I'm using Smush on the images and WP Super Cache. Images are a total of about 1300KB a think. It's hosted on GoDaddy (unfortunately).

Pingdom's latest test said it loaded in 2.5 seconds, but it took about 10 to load from my computer. The site has a 1400 ms wait time.