Sounds like you work best on a small team if that's your focus. Medoum-large ones already have a proven product (or proven experience). You don't focus on blazing gast iterations at that stage unless you are in early R&D or something evergreen.

And well, if you're primary motivation is Financial: okay, you're not being paid to move quickly. Or if you hope to move up the ladder quickly you gotta deal with the office politics. Which includes delays in communication. React to those lapses as you feel is appropriate to your goals and personality.