The slides are also viewable at https://speakerdeck.com/openwall/password-cracking-past-pres... for an experience closer to how they were presented in the talk (right arrow key moves to next slide). Maybe a better fit for you.

I actually liked to format personally. As I am on mobile I prefer the scrolling action over having to click buttons to goto the next page of a slide.

I remember using john the ripper and hashcat back in the day to see how secure my old passwords are....and boy has the technology really come along way