Really love that design, could just sit and watch it moving HOWEVER I noticed some stuttering. My settings:

Large Stars Speed = 100
Small Stars Speed = 600
Medium Stars Speed = 300

After less than a 30 seconds everything stutters and it stays like this till the end of a loop (when all large and medium stars compleatly moves off the screen). After that it moves all stars back and everything starts again.

Was typing it with default settings on and just noticed same behaviour but it starts after longer while.

And with settings:
Large Stars Speed = 100
Small Stars Speed = 0
Medium Stars Speed = 300

I'm getting 4 seconds of stuttering at the end every loop (if I'm right, don't know when and how it loops)

Was wondering if anybody else is or was facing the same behaviour?