What problem does it solve? Slow applications frustrate users and waste infrastructure costs, but guessing at bottlenecks often leads to wasted effort. This Skill provides a structured workflow to profile real hotspots, identify root causes, and apply measured optimizations across every layer of your stack. ## Core Features & Use Cases - Multi-layer profiling: Analyze backend response times, frontend Core Web Vitals (TTFB, FCP, LCP, CLS), database slow queries and EXPLAIN plans, and build times. - Targeted optimization strategies: Apply proven techniques like caching, query indexing, code splitting, lazy loading, connection pooling, and response compression. - Measured results: Enforces before/after measurement with a structured report showing baseline metrics, bottlenecks found, and optimizations applied. - Use Case: Your API endpoint takes 2.3 seconds to respond. Use this Skill to profile the request path, discover a missing database index via EXPLAIN analysis, add the index, and verify the query time drops to 45ms. ## Quick Start Analyze why my application's dashboard page loads slowly and optimize the biggest bottlenecks with before and after measurements.