Disable server checking for specific sync folder

Hello, i’ve nextcloud last version (just updated few hours ago) and want to know if is it possible to disable server update checking for specific sync folder.

I use nextcloud like a NAS. I’ve backup on my computer, wich replicate on external hard drive, with sync define on this external storage on Windows 10 nextcloud client.

So content of this folder never been change by other peoples or devices. It’s about 1.8To of files.
So, just want to know if they’re not a configuration to change (not found on doc) to disable nextcloud’s client check for update on server and just check for change on local folder, not by network.

Thanks in advance for help

try an up… ?