Any given co-op into the hundreds of people or more is going to have noticeably more. There is just literally a greater number of people involved in almost every phase of decision-making. This cannot be made quickly.
Just because corporations are cumbersome does not mean they are going to be just as bad as co-ops in this regard. And just because we like co-ops does not mean we should not try to be somewhat objective about them. They are certainly not simply across-the-board superior in every way, that’s just fantasy. Except at small scales, then the cumbersomeness doesn’t really come into play.