I had the same problem last month and had to switch. I just started my new site but was with godaddy since the beginning. The raw wordpress (no plugins) would be unbearable to use would take around 20 seconds to load with no traffic. Godaddys response was they were having tech problems and would be resolved soon. 2 days later still was not fixed so I left. I did not want to wait around its hard enough to get a site up and running aside from having a unreliable host. Apparently this is a ongoing problem with godaddy from what I have found.