ASP.NET developers optimize web applications by implementing asynchronous programming, caching, and load balancing techniques. They use ASP.NET Core’s built-in dependency injection and middleware components to enhance performance. With server-side rendering (SSR), WebSockets, and SignalR, Hire asp dot net developers ensure real-time data updates and interactive user experiences. Additionally, they deploy applications on Microsoft Azure, AWS, or Google Cloud, enabling auto-scaling and high availability. Their expertise in multi-threading, distributed caching, and API optimization ensures that web applications remain fast, responsive, and scalable to accommodate growing business demands.