DebuggingClaude Code

Performance Investigation

Diagnose why something is slow

Prompt

This [endpoint/function/page] is slow. It takes [X seconds/ms] when it should take [Y]. Relevant code: [file paths] Analyze for: 1. N+1 queries or unnecessary database calls 2. Missing indexes 3. Expensive computations that could be cached 4. Blocking I/O that could be async Rank findings by likely impact. Show me the fix for the top one.