have all movies thrown together into one large folder, without any subfolders per movie. Don’t do that.
have another software continually changing the media folder(s) [i.e. adding, removing, or modifying files], thus triggering a new scan for external subtitles upon entering the preplay page of a video. Don’t let it happen.
Plex doesn’t refresh metadata from the Internet automatically, when you enter the preplay page. The delay you experiencing is due to one or both of the above things.
If you don’t use external subtitles or any other type of local extras or posters, you can disable the checkbox “Use local assets” in the properties of the Plex library.
Thanks for the reply. After putting this on the back burner for a while now I decided to bite the bullet.
I spent 6-8 hours trying and testing moving from a flat folder system for my movies to individual sub-folders using FileBot. It appears to have worked well. Approx 3800 items.
I also disabled some security scanning on the NAS that hosts the files.
After 24 hours it appears as though the needless refreshing and time-out from from client devices has stopped.