Running on chains I just settle into a speed where the bouncing stops, depending on the depth and consistency of the snow that can be anywhere between 20 and 50km/h.
I also use the purpose made spider bungees to keep them as tight as possible to avoid spitting them off, a lesson I learned the hard way after repeatedly losing a chain and having to stop and go back, drag them up the hill and refit them, during this process I went down the hill on my arse a few times too and that is a completely overrated experience.