I got caught up in all his videos and had the same question. Fortunately, he has a dedicated video where he answers this with testing on the scope: https://www.

I got caught up in all his videos and had the same question. Fortunately, he has a dedicated video where he answers this with testing on the scope: https://www.youtube.com/watch?v=fCbAafKLqC8 https://www.youtube.com/watch?v=fCbAafKLqC8 tl;dr is what the sibling comment already explained: low clock rates.