Folder synchronization 150GB - App is not responding

Hi,

When you want to synchronize a folder (of 150GB+) manually (by click on contextual menu of the folder, then "Synchronize"), after ≃ 30s there is a "Nextcloud isn't responding" message asking for killing/keeping the process.

This operation seems to be managed by an async task (in an operation), so I don't really understand why the app ask to kill/keep after the timeout.