Small teams do not win by pretending to have the throughput of a large company. They win by reducing hand-offs, keeping the people making decisions close to the people writing code, and choosing a narrower problem worth solving well.
Fewer layers, clearer ownership
A useful product decision should not need to survive five departments before reaching the interface. In a small team, the same people can understand the problem, prototype the response, build it, and watch what happens after release.
That does not make the work casual. It makes responsibility harder to hide.
A smaller surface area
Good small software rarely needs to become an everything-app. A clear boundary can be a competitive advantage: fewer settings, fewer notifications, fewer ways to get lost.
The difficult part is saying no early enough.