The "crime of the week" never really gets any better, and since it was an ABC drama it needed to hew pretty closely to that formula. From S02 onwards they start building a mythology about the machine and where it comes from etc, but since it's a 22-episode season it'a _really_ slow burn.
Season 3. Especially season 4 and 5 are almost entirely about battling super intelligence while avoiding super surveilence. The crime of the week mostly subsides and it is all about super intelligence battles.
https://youtu.be/SmUO0v7VYTo