Somethings not right, I would think there are tons of VB sites running on shared (myself included) and just so long as you're optimized and have a relatively small community, it shouldn't be a problem. I had an issue awhile back. Database errors and timeouts etc. Server load was anywheres from 20-40 at any given time. Turned out it was a case of the server host loading as much as they could. They moved me and problem solved.
On a side note...nice kawi btw