Performance checklist that works in production
UI
- Virtualize long lists and reduce re-renders
- Keep images optimized and cached
- Offload heavy work from the JS thread
- Measure startup time and screen transitions
Data
- Cache server state and avoid request storms
- Use pagination and incremental loading
- Prefer stable keys and memoized selectors
- Track slow API calls by device network type
Optimize the whole system: app + backend + network. Most “slow app” issues are data and payload issues, not animation issues.
The new architecture: adopt with discipline
- Upgrade dependencies in small, testable steps
- Validate performance gains with real device metrics
- Keep feature flags for risky changes
- Maintain compatibility with native modules you rely on
Practical rule
Do not merge architecture changes with large feature releases. Keep changes isolated so you can quickly roll back.
Crash reduction and stability
Crash hygiene
- Release tracking + symbolication
- Group crashes and set top-10 crash targets
- Log breadcrumbs for key flows
App reliability
- Offline-safe states and retry UX
- Timeouts for network calls
- Graceful auth/session expiry flows
A release strategy that scales with your team
- Use staged rollouts and monitor crash-free sessions
- Keep “beta” channels for faster iteration
- Use OTA updates for safe JS-only fixes (with guardrails)
- Maintain a clear rollback plan for hotfixes
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Share your app goals and current problems (slow lists, crashes, build complexity). We'll propose a plan to improve performance and ship reliably.