Startup time is negatively impacted on a deep nested directory structure over SMB/Samba because of directory treeview

[therealmarv]

Description of my use case:

• I've recently started using a Raspberry Pi 4B as a Samba Server for an external drive.
• the files are in deep nested directories on this server
• file transfer is not an issue and very fast

The problem:
It's probably a Samba design problem but this takes away always several seconds (2-7 seconds depending of nesting of directory) of Phoenix Slides starting up...

The tree view of Pheonix Slides in Thumbnail view is inspecting every parent directory of a given picture on start up and it takes long time to collect such information over the network in comparison to physical attached drives.

(Possible) Solution:
Make the directory treeview optional and only visible and collect information like every parent directory on visibility only. This way Phoenix Slides would only view the current directory but still can be same powerful on multi directories on users' request.