Tiptop - but remains a question!

So, now it has come. Easy, wobble-free sitting, slightly heavier than normal zoom ring (which is, yes, but still to give and I prefer, as if he "baggy" would be), backlash-free focus ring.
Imaging performance, as it is written by all here, very good, as long as I can tell at first 10 shots.

But a question mark remains: That it is louder than the 14-42er, was already mentioned here. But it is normal that there are these "robotic" (although slight, yet clearly audible) sounds when focusing? Is that with you so ???

The lens is of course completely new !!!