Reduce server response time ➤ (Eliminiate landing page redirects) ➤ (Use a Content Delivery Network) ➤ (Deliver your site encrypted) Those things help a lot - but don’t bring you close to 100 points alone…
to deliver multiple versions (aka responsive and Retina-Optimized images) ➤ Images must be optimized! A Neos-Package does the magic (with the help of some npm packages): https://github.com/mocdk/MOC.ImageOptimizer
what’s needed ➤ Use and tune Caching! ➤ (minify the HTML output) Caching is greatly configurable with Neos, minifying is possible with Flownative’s Compressor-Package: https://github.com/Flownative/neos-compressor