I know that is two minutes of brutally boring video that very few people will watch because, well, it looks like not much of interest is happening. But if you skip from place to place in the video, you'll see that EVERY SECOND of it, the puppy is sniffing. Sniffing the ground, sniffing the air, sniffing plants. His little legs are moving, but really only to carry him to the next interesting scent. So, to the puppy, what's going on in this film is about as interesting as it gets.
The most constructive action item I can give you is to watch closely and observe how much your puppy enjoys sniffing and how much it satisfies his soul, and it will gradually become more interesting for you, too. Over time, your puppy will learn how to enjoy walking with you more, and you will learn how to enjoy watching him sniff more, and you'll come to a happy place where the walk is equally enriching and enjoyable for both of you.