I figured as much. Vendors aren't so helpful.
Can we narrow down the type of performance problem that you're experiencing? For example, are the performance issues on SELECTs, INSERTs, UPDATEs, or DELETEs? Are they for singleton rows or batches of rows? Is it through a GUI or something else that you're noticing the performance issue? Have you been able to narrow it down to a piece of code and, if so, could you post it along with an actual execution plan?
--Jeff Moden
Change is inevitable... Change for the better is not.