Poirot novels that take their time getting to Poirot (No spoilers please)

Does anybody else just REALLY hate them?

I’m talking about books like Blue Train, Cat Among the Pigeons, and Taken at the Flood.

Where half the book is spent listening to people whine about their lives before the murder takes place and Poirot is brought in.

I understand the construction, and the point of it, but I just really freakin’ loathe the books that do that.

Okay, for that out of my system. Am I alone in this?