Gatsby, a React-based framework, is highlighted for its superior performance in website loading speeds compared to other frameworks like Next.js and Nuxt.js. Utilizing data from HTTPArchive and Google's Core Web Vitals, Gatsby consistently demonstrates higher pass rates and better Lighthouse scores, particularly in mobile environments where performance challenges are more pronounced. The analysis reveals that Gatsby sites load 1-3 seconds faster and receive 7-10 points higher Lighthouse scores than their competitors, contributing to a potential 10-30% boost in conversion rates. The blog underscores that while Gatsby provides a notable performance advantage, all sites can benefit from optimization, and Gatsby offers resources and services, such as the Concierge Tech Lead program, to assist in enhancing site performance further.