Hi once audio analysis has completed it is only run again on demand, or for new file imports … so I don’t think switching it off will make a difference.
I’m wondering if there is a bottleneck in the network. Can you please describe your setup, in detail, as seen here. The more specific you can be, the better.
Also someone one here reported issues when they “upgraded” their network switch reverting to the cheaper version fixed the problem. So if you have a spare switch or can borrow on that might yield results.