Breaking Bad isn't slow to start. I don't know what people want with a show about selling meth to stave off medical debt for your family, but it's got pretty much everything in spades. They literally start cooking in episode 1, kill people in episode 2 (1/2?), get introduced to his BIL DEA agent (hello foreshadowing), and he tells his wife by episode 3.
Better caul saul definitely has a slower start, which is to be expected when you learn it's the origin story of a fucking shadeball defense lawyer who started out in the mailroom. However that also falls by the wayside when you realize he gets kidnapped by Tuco in the first episode.