Hey Pine Panda, I was wondering the same thing. What you need to do is set excessive values in the Noise Speed (100, 100, 100) and then small values in the Noise Lock Time (0.2). If you use too small Speed values and values such as 1 in Lock Time, that will cause your beam to freeze. I’m not sure if I got it correctly but it has slowed it down for me. Hope this helps!
It would be nice to see an update in Beams and Ribbons in UE4…