By utilizing Azure Application Insights, you gain insights into the performance and usage of your web applications, including real-time analytics, monitoring, and detection of performance bottlenecks. This information can be used to make data-driven decisions for optimization.

Azure Functions, a serverless computing offering, allows you to offload resource-intensive tasks to the cloud, freeing up your web application to focus on serving user requests more efficiently.

Azure Traffic Manager is another useful feature that allows you to route incoming traffic to different endpoints based on performance, availability, or geographic proximity, ensuring your users are always connected to the most optimal server.

One way Azure can help optimize performance is by using the Azure Content Delivery Network (CDN), which caches and delivers static content from locations close to end-users, reducing latency.

Azure Application Gateway provides layer 7 load balancing and SSL offloading capabilities, allowing you to distribute traffic to multiple backend servers, which can greatly improve the scalability and responsiveness of your web applications.