React App into Production (Optimize, Browser Compatibility, Hosting on AWS, etc)

I have a 16-page website with the MERN tech stack (MongoDB, Express js, React, Node.js). I can add you as a user on GitLab so we can get started right away. What I Need: 1. Optimize to make Google Page Speed Insights better (currently at 50 for desktop and 60 for mobile) main issues - render blocking scripts - leverage browser caching - enable compression - optimize images - minify html 2. Browser compatibility help. It works at all sizes on the current versions of Chrome, Safari, Firefox (mostly). But I need to support older versions as well as Internet Explorer. 3. Put on frontend and backend on AWS server and prepare for launch. I am looking for someone to work closely with me and be available by phone while we work together. Message me and I can send you a private link to take a look at the site.