This process takes almost one hour in my NucleusPlus to process my half million files. But the bigger problem is that, while it runs, Roon gets annoyingly slow, making navigating through the Music Library almost impossible.
Having 500000 files is going to take time to analyse each one and pull metadata, having it on a nas likely longer. Turn off analysis in settings library and start it in downtime. It means you won’t have dynamic range info and display waveforms until you do but it will make playback easier as the cpu isn’t as busy. Initial analysis pretty much take all the machines resources…
Shall I switch ON the last one, that saying OnDemand , as Acelerated for exemple? It has been always switched off in my case, don’t tell me I understood it wrongly and we must put it ON /fast or accelerated), in order to stop the process and get it only on a Demand basis…?
Background analysis, the first option, runs automatically in the background and analyzes the whole library (or when you add someone new). It can take a long time with a very big library and uses a lot of resources until it is finished.
On-demand, the second option, runs only for the tracks you play, when you play them.