One of the ways I mitigate the performance and management issues with folders in the Portal directory is to replace key folders with folder providers (e.g., Amazon). This has greatly improved performance and decreased management times with each of the websites I've done this with. You can even do this with existing folders.
Regarding the management aspect... Backups and restores especially are far less time-consuming and much more manageable in all aspects. It also helps with more enterprise situations when key/strategic files/folders are on an external API-based system like Amazon.
Here's the post Timo was mentioning: https://m.facebook.com/groups/756753714471271?view=permalink&id=1624906114322689
I remember reading your FB post. AFAICR, Sebastian did not respond?
Time to dig some further in the routines that handles permissions & folders.
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