tune-mobile-client-performance

Diagnose and tune one user-visible performance problem in a Swift, SwiftUI, React Native, or Expo mobile feature by tracing the first missed deadline across motion, rendering, state publication, media, storage, network, and observability, then applying and verifying the smallest causal change. Use when an interaction, animation, scroll, keyboard transition, first paint, or loading path is jittery, stalled, late, or less seamless than expected and the bottleneck is uncertain. Do not use for broad app performance audits, motion ideation or craft review without a runtime symptom, recording-only analysis, backend-only optimization, or release hardening.

License

MIT