“Stop after current file” is definitely slow, because there’s a long pipeline of work-in-progress to finish.
“Stop now” is something I avoid because it’s sometimes a source of problems – but is getting better…
Throttling is still rather mysterious. My tests on 2.0.5.1 are showing upload throttle controlling both the upload and download rate, and download throttle controlling nothing, which is a change from before…
Maybe there’s also something specific to Jottacloud (which I don’t have) that makes throttling worse…