When I was younger I would only download these via bittorent because our connection was extremely unreliable and bittorent was always restartable.
A tip is to use a tool like axel (https://github.com/eribertomota/axel) to do direct downloads. This will usually speed it up.
Uh oh. Thanks to the repo owner for updating the README, but that's not a good situation.
I'd also like to suggest aria2c for this purpose: https://aria2.github.io/