Sunday and RGME,
Clearly you're new to the Zen Cart community, and you wouldn't be aware of any of the history about GoDaddy. I'm sure you mean well, but you're mistaken.
No doubt your tone is based on personal frustration with a problem you've gotten into seemingly innocently. But, telling Zen Cart that we need to fix your problem is not the solution ... in fact it's downright misguided.
The problem you have is related to GoDaddy's bad hardware architecture and bad business plan and shady ethics. You can only make server-to-server communications go "so fast" with certain equipment. And when services are spread across multiple servers as discussed earlier in this thread, the system is only as good as its weakest link ... in this case the weakest link is the hosting service.
There is nothing Zen Cart can do to convince the people at GoDaddy to get better hardware or smarter staff to configure their servers in more efficient ways. Simply stated, GoDaddy doesn't care about you. They only care about their bottom line.
You wouldn't know this, but Kim and I have spent many months on multiple occasions dealing with various folks at various higher levels of influence and decision-making at GoDaddy, and in all cases, it has always been made very clear to us that they have NO intention of making their low-end hosting services run any better, whether for Zen Cart or anything else. In fact, they have specifically admitted that they intentionally build their business model to oversell their servers. We've even tried aggressively to get them to open up several standard TCP ports for ecommerce payment processing, and they continue to refuse to offer that to their low-end hosting.
The only way you'll be able to have any influence over even a smidgen of performance on GoDaddy hosting is to pay for their more costly service plans ... which are more expensive and offer fewer features than the Recommended Hosting partners listed here on the Zen Cart site.
The only thing GoDaddy is good for is domain names. Everything else they sell is gravy for them, and they only put enough effort into everything else to squeak by and keep cash coming in ... as you've seen demonstrated in the hosting you've bought.
So ... there's really no gentler way to say it:
As everyone here is telling you ... get a different host.
If you can't get a refund from GoDaddy, write it off as a business expense. Put a different domain on that account until it expires, and use that domain for testing upgrades/etc for your site, since you don't need super-fast performance on a testing site. At least that way you won't be losing the "investment" as badly. Worst case, chalk it up to a learning experience.