You should not have bubbles in the tank... they should all stay in the skimmer chamber. If this does not go away after the initial break-in period, then there is a problem.
It should not produce that many bubbles in the tank. Regardless if it’s broke in or not. When a skimmer is broken in it will start to produce better skimmate in the collection cup. But doesn’t change the bubbles. I would say something is set up wrong. Hard to see from that one photo.