over the last 4 or more updates (currently Build 9294), we've been seeing a problem where the autocomplete email address take forever to search/populate. It happens on same server (intra-domain and inter-domain) and external addresses at random.

I thought after caching a search it would work ok, but if you keep trying it will be slow at random - that is I tried a random group of 15 addresses and sometimes when going back through the list it's slow again, not always the same person - random

the CEO is on me saying it's taking over 5min to write an email -- aka, the pressure is on