Apollo Performance Tuning Overview Optimize Apollo.io API performance through response caching, connection pooling, bulk operations, parallel fetching, and result slimming. Key insight: search is free but slow ( 500ms), enrichment costs credits — cache aggressively and batch enrichment calls. Prerequisites - Valid Apollo API key - Node.js 18+ Instructions Step 1: Connection Pooling Reuse TCP connections to avoid TLS handshake overhead on every request. Step 2: Response Caching with Per-Endpoint TTLs Step 3: Use Bulk Endpoints Over Single Calls Apollo's bulk enrichment endpoint handles 10 reco…