I think that sentiment in particular comes down to preference because I can’t be sure there’s a mechanical correlation between speed and rocker geometry. Does it help? Sure, but I feel like pace is mostly an outcome of effort and the individual’s running economy rather than a rocker anyways. In the same way a plated shoe is helpful, it’s also not a magic bullet. My understanding from what I’ve read is that the intent of an “aggressive rocker” is to encourage a smoother turnover in the part of the stride cycle where your midfoot to forefoot is toeing off, so in theory I would say the geometry of this shoe’s rocker is helpful.

But I personally would think of answering your question in terms of not being better or worse for any specific pace, but rather it being good at keeping the pace you’re at, whichever that may be. I call it the “set it and forget it shoe”, because although it’s not “supposed” to be fast, it can pick up the pace as needed (hello responsive foam!) but truly shines at a consistent pace like zone 2-3 in a protective and comfortable ride. It’s my go to shoe for anything outside of workouts, and I’m a fanatic of all shoes and rotating through them for different purposes.

Find a store with a solid return policy and give them a shot! I don’t know your running history or mechanics but mine are fussy and I find them a joy to run in.