This is a layman's fix I just discovered, in case anybody else is interested.

When you send your ship/fleet into a stellar stream it can take a long time for it to finish it's zig zaggy trek along the stream path. If this annoys you (like it does me), I found a kinda fix for it. Position the entrance to the stream on the very edge of your map, so that the travel path is off screen. Then move your ships into the stream entrance, and poof; the ships are instantly at the full extent of their travel along the stream path, without going through the long boring annoying zig zaggy path animations.

Yeah I'm sure plenty of people have figured this out already, but it's news to me. So I figured I would share.

Happy Thursday !