Reduce page load time

Audit and improve the page load performance of [URL or Application]. Analyse: the critical rendering path for render-blocking resources, the Largest Contentful Paint element and how to preload or optimise it, unused JavaScript and CSS being shipped to the browser, the font loading strategy and whether fonts are causing layout shifts, and the initial server response time. For each finding provide a concrete fix and estimate its expected impact on Core Web Vitals scores for LCP, CLS, and INP.