I'm not a fan of the hyperspace animation - I think it could be improved.
When you look sideways you can see that a good deal of the 'things' that move towards you are simply texture maps on a load of spheres moving towards the user - you can see the spherical shape...
I'd like to see more effects and differences in the animation - I must have watched it several thousand times...
It used to be a lot worse. Flat planes with 2D points plotted on them. Horrible. At one point the planes stopped moving when they hit the ship's x coordinate, so if you had a canopy with good visibility you could look 90 degrees and see a whole bunch of lines where the "stars" all collected. And nothing at all behind the ship.
There have been a few changes to hyperspace animation over time, some better than the immediately preceding one, others arguable worse. But overall I think this is about the best one we've had. Parts of it are repetitive if you stare, but at the end of the day it's just hiding skybox generation and other insancing calculations. Any attempt to petty it up further might result in more delay, which is counter to its purpose.
And the sound is still spooky as hell, even after nearly three years.