I've heard similar, but I've gotta say that my iPhone 7s still runs plenty fast for my needs. I don't use it for a ton of stuff, and I don't game on it, so that may impact things. Pandora, Spotify, Music all work fine as does eMail, messaging, and Maps. Oh, and it's a perfectly fine phone. I would say that power users may really find this to be true, but I'm not sure about the rest.