Gatsby is a React-based open-source framework for creating websites and apps. It's great whether you're building a portfolio site or blog, or a high-traffic e-commerce store or company homepage.
Check out Gatsby's official web site
"Gatsby loads only critical 1 parts of the page, so your site loads as fast as possible. Once loaded, Gatsby prefetches 2 resources for other pages so that clicking on the site feels incredibly fast. Gatsby lets teams focus on creating content-driven websites instead of worrying about performance." - gatsbyjs