Slow action in short movies

Was checking out these two again recently because I was wondering how you convey slow to an audience while keeping it interesting. With Badgered it felt so long the first time I watched it and re-watching it it goes by quickly. The badger is always doing something, he never gets to stop and sleep for longer then 1 or 2 breaths at most, he's not moving turbo, he's taking his time, but he is always moving and changing and reacting. With Geri, his hands and arms are very quick, his body is slow, but there's only a few shots with his whole body moving, they only show the whole body moving like an old man for two shots, and then they cut quicker and quicker to sell the audience on the conceit. It's interesting to watch him for his speeds, because he starts feeling unconnected as a character, his arms move fast except when he's 'supposed' to look old, same with his body. But I never noticed that in the tons of times I've watched it before, not until I analyzed the movement specifically.