Only marketing people are claiming they are good at everything. They can suck at things like creating C compilers and still be really good at other things. One thing they are really good at is impersonating people online and swaying public opinion on things. If you think you don’t have to worry about that because they suck at creating C compilers, then i’ve got news for you.

I don’t know if this applies to you, but don’t use the compression flag (-z) for files that already is compressed (like video). The transfer will get CPU bound quickly if you have a fast internet connection.

I went from 13 Mbytes/s to 200 by removing the -z flag, and the compression ratio was non-existant anyway.