Just my 2c here, not an expert in this, but the issue might be with rclone and WebDav. I have used WebDav in the past, and I had lots of headaches with it around speed. Having said that, see Kopia sync-to rclone using webdav where I think the issue is very similar to yours. There is some bottlenecks around Kopia/rclone/WebDav, and the TLDR is that more work needs to be done. As a workaround, you could in theory do something like the poster in the other thread: which is have a timer/cron to run a shell script to rsync the local repo to remote and perhaps get a speed boost. The rsynced repo should behave identical to the original or the sync-to repo, so you shouldn’t get into any trouble.