react native do uses native UI per platform in contrast to flutter or compose multiplatform. React Native improved a lot - it's not the same technology that has been 5 years ago. Especially this year there were plenty of improvements also regarding speed but in react native and community plugins (new architecture rolled in, react compiler, hermes v1, nitro modules, flash list v2, legend list, react native skia, react native webgpu, expo use dom) Tooling in JS/TS ecosystem also improved a lot.