Diagnose and fix Core Web Vitals issues on AEM Edge Delivery Services pages. Goes deeper than generic CWV advice by understanding EDS-specific performance patterns including the 100KB LCP budget, E-L-D loading phases, block rendering behavior, and third-party script impact. Produces specific fixes for LCP, CLS, and INP issues with before/after projections. Use when the user asks about Core Web Vitals, page speed, or performance issues on AEM Edge Delivery Services (EDS/Franklin) sites.