It has happened to me for years actually I'd say. I haven't tested too many use cases but whenever I've to copy by scp a large file to another machine (usually all of them running Ubuntu Server or Desktop, from 14.04 to 18.04, within a local network or to a remote location, from home, work, university, etc), the speed decreases with time. It starts, for example, at 2Mb/s, and then decreases second by second to reach even speeds as low as 100Kb/s.
Why is that and how to fix it?
