Cloudflare is enhancing its network speed globally by overhauling its software technology and addressing Internet-scale congestion with improved algorithms. By leveraging its extensive Free Plan user base, Cloudflare aims to optimize traffic routing across its network, resulting in a reported 10% increase in performance. The company uses its Argo Smart Routing product and insights from the global network to optimize connections, while managing congestion is crucial to prevent delays caused by overloaded nodes. Cloudflare is transitioning its network technology stack to a new platform powered by Rust, which allows for more flexibility in experimenting with congestion control algorithms. The company utilizes both passive logs and Real User Measurement (RUM) data to understand and enhance user experience, further refining its predictive models with insights from its largest customers. Experiments and improved algorithms for congestion control are currently being tested on free tier QUIC traffic, with plans to expand these enhancements to all customers over the coming years.