Optimize application performance

[BrayanMQ]

Optimize loading, rendering, and queries for better performance.

Tasks

1. Implement lazy loading of heavy components
2. Optimize React Query queries (staleTime, cacheTime)
3. Implement pagination or virtualization if there are many habits
4. Optimize images (next/image)
5. Appropriate code splitting
6. Minimize bundle size
7. Test with Lighthouse and optimize metrics

Acceptance Criteria

• Initial load time < 2s
• Lighthouse score > 90
• Queries optimized
• Reasonable bundle size