The beginning of WCI had too much Vinsmoke action, maybe the worst faction in OP to date. Then it had Sanji drama with Pudding and a lot of randomness with the lesser characters like Carrot, Brook or Chopper that didn't matter.
And Post Tea Party, the only saving grace is Kata vs Luffy. It's still frustrating to read the Sunny chase with Linlin and see how plot heavy the Straw Hats are. It destroys the tension of the arc.
Wano fucking sucks but it has dinosaurs