Photo Sync of PLEX running ages

Copied few photos to PLEX Share Photos folder and stated sync. Running for ages… I think I can upload all these photos to Google Drive or One Drive (internet upload) in less than 10% of the time its taking for just “local sync”.

Clueless what this is doing for sssoooooo looooong times … and when my Sync finishes …

Any info / help on this please

This seemed to be general problem with this disk. Mine is syncing Google photos 5 (!!!) weeks and still not finished, and is noth massive library.