Overwhelmed by noise in audit log

When I check the audit log, I am generally investigating the root cause of some problem. However, it's annoying to do this because my audit log is filled with records of every successful sign-in of hundreds of agents. I often find myself needing to generate audit log entries so that I can use the click-to-filter capability to find the events I'm actually looking for.

For example, if an agent is reporting some loss of access or functionality, I need to do something like add them to a group and immediately remove them so I can click on their name to see a filtered audit trail.

That's fine as a workaround I suppose, but the real issue is when I don't know when or where exactly a change has occurred. I need to click through multiple pages of "Successful sign-in by so-and-so" to see any important changes to views, triggers, users, etc.