Bad Video and audio quality

We tried to follow the video but it was very tough to understand. 1st the audio fade in and out and even at the highest setting it was not loud enough. 2nd the filming angle is always from Top down with no zoom in for close up at important intervals. Moreover, the narrator's hand is always blocking what he is demonstrating. My kid got so frustrated and just eventually gave up. I'm now struggling on my own to trouble shoot the creation. A pity as the concept of the crates is good but just lack professional editing, videography skills.