The video is set out in chapters so you can skip forward to the more relevant sections for you. Just run your cursor along the timeline and read the headings for each of the key sections to choose the ones you'd like to watch.
If you watch this on YouTube you can click directly on the required chapter from the menu on the right. Click this link to go to YouTube: https://youtu.be/m4pREMJ0G6k
You can pause the video as you go through, or choose a slower Playback Speed from the settings cog at the bottom right of the video screen (the recommended speed is 0.75).
You can also set the Quality to 1080p to ensure the best resolution on larger screens.