Any way to quantify what causes a long library scan?

[podonnell 51]

I've recently been catching my library scans running, which I never have in the past. When I do. I watch to see how long it takes to complete. Currently I've had one running for at least 2 minutes prior to me starting this thread, and it is still be running when I finished typing this message.

I did check to confirm there is only a single stream happening, the CPU of the host machine is about as low as it normally is, and there are no current transcodes.

Curious if there is any way to quantify what might be causing the longer library scans as of late. Is there any way that this can easily be done?

Thanks!