Strange Slowness on Customer Custom View

Vantage 8.03.408a Progress

I have the Customer table set up as a custom view in the Credit Manager.  A few days ago, the Credit Manager went from a few seconds calling up a Customer's credit to a few minutes.  If I remove the custom view, the speed returns to normal.  Customer Maintenance calls up a customer at normal speed and so far nothing else appears to be affected.

I have recreated the customization on the Credit Manager, but the problem still exists.  I disabled all BPMs and the problem still exists.

Anyone have any ideas?

Steven G.