He tends to have a fairly relaxed pace, which is helpful when he covers a game or run you know nothing about. But this one does feel slower than his usual. I think it may be that there just isn't that much back-and-forth in this story. Also, he seems to be experimenting with longer videos now that he's gone full-time on YouTube.

He did a video like this one with much better pacing in The Quest To Beat Matt Turk. And he's got some pretty good sub-30 videos as well, like 4-2: The History of Super Mario Bros Most Infinite Level. Those might be more to your liking if you're interested in speedrun history that goes a bit quicker (ha!).