Performance is a lot better, but I may have discovered a regression.

I'm not 100% sure if it's related, but now searching the audit history by user seems to be broken, and it was (Largely) working a couple days ago.

Mmmm. Testing further indicated that for example if my username is bgupta and my display name is "Brian Gupta", if I click on a name in the audit list, it searchs for the display name, which doesn't work, but if I manually type in my login name (bgupta) into the search it works. Searching for the Admin user audit still seems broken.