Performance Optimizer Overview Provides a systematic approach to application performance optimization across the full stack. Use when diagnosing slow page loads, high API latency, database bottlenecks, or scaling issues. Not a substitute for application-specific profiling -- always measure before optimizing. Quick Reference Performance Budgets | Metric | Target | Category | | ------------------------------- | ------- | -------------- | | Largest Contentful Paint (LCP) | < 2.5s | Core Web Vital | | Interaction to Next Paint (INP) | < 200ms | Core Web Vital | | Cumulative Layout Shift (CLS) | <…