Cleaning cache file for external storage

Hello,
Here is how my current nextcloud instance works.

I have a main file server accessible by an SMB share, my nextcloud server which is connected to this server by the “external storage” application and another server which has the nextcloud desktop application or a local folder is synchronized with the folder connected in SMB on nextcloud.

I noticed that if I modify a file on the main file server, on the server that is synchronized it does not update. to solve the problem, on the nextcloud server, I scan the files with the command occ files_external:scan <id_external_storage> then it updates on the server which has the Nextcloud desktop application. but the process is long if you have a large volume of data

is there another method? or an equivalent of occ files:cleanup but for external storage?

Thank you for your help

It seems there is no other way. Maybe this will help: External storage isn't up to date - #3 by schnappi