Please help to resolve extremely slow upload from Mac to MyCloud Mirror

Mac support is AWFUL. We’ve been complaining about it for years. Using a PC is fine, phones, devices all fine. Anything with Mac transfer using any of the various protocols is painful. I actually think it’s more likely Apple’s fault since they don’t play nice with anything other than Apple these days. Did you try SMB? Also check out this thread as some of these commands will stop some annoying services: