Sync from iOS to Nextcloud is slow

OS: iOS 13.3
Joplin: 10.0.40
Nextcloud: 17.0.1

Sync is quite slow on iOS (not on Windows), sometimes over 1 minute. I’m currently at 2 minutes and counting for a sync of 5 short notes.

Does anybody else have this problem?

Incidentally, would a feature “force sync on exit” be an idea?

Thank you