Hi. I am using Google Drive. I have been experiencing unusually slower plex music library scan on a crypt mount. Its so much slower than the plain google mount.
I have a lot of music albums and it took Plex just a day without crypt. While it was scanning, I could see the albums appearing in the Library as soon as it scanned.
However with crypt, while plex scans an album, it just won't appear straight away in the library and is unusually slower. And sometimes won't at all. Changing plex library to a folder view, I can see a lot of albums which had been scanned but didn't appear in the library. Browsing to these folders, I cant see any tracks which probably forces plex to not register these as an album straight away. However, I can see tracks just fine on the server when I checked with terminal. Although it takes a while to load.
I would recommend you make the changes I highlighted above and try scanning again. I have no experience with Plex and music files, but this should help regardless.
Do you have sonic analysis enabled? That would go through each and every song, and would take considerably longer.
EDIT: So much for highlighting inside the quote... LOL
EDIT 2: Not sure if this matters, but there shouldn't be any "=" in your mount flags.
Without seeing a config/debug log, it doesn't make sense though as the OP stated:
regular mount fine
crypt remote slow
The crypt remote adds a very tiny bit of overhead, which is why I like to see a log and the actual config before recommending changes as if 1 worked, 2 should work as well.
Back to my original point, we've now wasted a few posts/time going back and forth, because the information was not entered/shared in the template so we're guessing what is meant rather than having the data.
There is "Google Mount" on Linux as I'm only aware of fuse based solutions to get access to Google Drive since the reference was Ubuntu. I "assume" a plain google mount a non encrypted one and the issue was using a crypted mount, but again, just guessing.