We have been reporting slow database loading for years.
Here is just one example of someone else having this issue: Slow loading from hard drive
To this day I’m still experiencing slow database loading on a samsung T5, samsung T7, and a sandisk with my SC5000s. Adding to process of elimination, all 3 harddrives are managed on 3 different computers and all 3 have different databases. Same problems on all of them. I’ve also cut my library down to 30k. Sometimes it takes 2 minutes for the library to load (upon startup + sporadically hours into DJing).