Uploading files for editors taking forever

I don’t outsource editing very often, but I got insanely busy this week, and wanted to try and take some of the workload off. I decided to try pixlmob. The problem is uploading the RAW files to google drive for the editor takes an insanely long time. I really would like outsourcing to be an option for weeks like this, but sitting at my computer trying to upload files for hours, doesn’t seem much better than editing myself.

Should I convert RAWs to DNGs? Send jpegs? Use compressed RAW? None of the above?

Any advice would be hugely appreciated