> If your React app is too slow/unoptimized, the client will pay the cost, not you For the client the experience is worse and the cost is higher, so it's defin

> If your React app is too slow/unoptimized, the client will pay the cost, not you For the client the experience is worse and the cost is higher, so it's definitely a worse solution. SPAs really only make sense when you have a mostly offline application, which is just a very tiny bit of websites out there.