In the last two weeks, I've seen nothing but bad page loads when checking out a few GoDaddy Wordpress sites. Yours is sporadic right now. One of the Lawnsiters was showing minute+ page load times for a low-impact WP blog. That particular WP site was on a shared IP with 800+ (from memory) other sites, so who knows exactly where the issue was coming from. Yours is on with 627 other sites.
One potential issue with shared IPs, beyond taxed resources, is the potential to fall victim to those you share with. For what it's worth, your IP address features a marijuana "strain bank".
a guy who knows both the lawn business and web strategy