Uploading too slow and unstable - migrating from Nextcloud seems impossible

Seadrive CLI and Seafile CLI are 2 different programs. Seadrive uses a virtual filesystem and doesn’t require any storage space except for the cache. Seafile physically saves the files on the hard disk and thus requires storage space.
With Seafile client you basically have 2 options:

  1. Create a library and setup syncing with your existing Nextcloud data directory. I think the library name and the directory name need to be the same for this to work, but I’m not sure as I’ve never done with Seafile CLI before. A backup of your data is definitely advisable for this option.
  2. Create a library in Seafile server, create a new directory and setup syncing for both. Then copy your data from Nextcloud to your newly synced directory. This option requires more storage space but might be easier and saver.

Not sure I understand. Seafile/Seadrive CLI aren’t needed once the transfer is complete unless you want to keep them for different reasons.