I like Breaking Bad a lot, but "Fly" was one of the worst things I have ever seen. It's up there with the movie "Tree of Life" of things I've watched where it felt like God was punishing me for something. I couldn't just skip through either, because after the first 30 minutes of torture, I'd be furious if I gave up and missed something important. I don't think that episode really added anything of value. JMO.
It wasn't just the slow pace. I can handle the pace. I loved the movie "Gerry" by Gus Van Sant, and that was basically just two guys walking through a desert for 2 hours.