I've been tasked with uploading around 100GB of content to SharePoint Online (in a very huge folder structure, containing lots of very small files) and am finding that the upload speed using Explorer View over a 200Mb Fibre connection is ridiculously slow (Never goes above 20Kb/s). What can I practically do to speed this up, if anything? Off the table is paid migration software for this client, so I'm thinking more scripts or other tools.
Thanks,
R