The true power of Blazor is building components that feel 'alive' by reacting to data pushed from the server in real-time.
Instead of polling the API every 30 seconds, use a custom **SignalR Hub** (separate from the Blazor internal one) to push notifications to the client. When an event happens (e.g., 'New Support Ticket Created'), the server broadcasts it, and the Blazor component updates its list instantly.
Blazor is perfect for 'Who is typing?' or 'Who is viewing this record?' features. By managing a shared state on the server, you can push UI updates to all users currently viewing a specific page. This 'Collaborative UI' is very difficult in React/Angular but trivial in Blazor Server.
Q: "Does @rendermode InteractiveServer hurt performance?"
Architect Answer: "In .NET 8, you have granular control. Usually, keep your Static pages (like Landing pages or Blogs) on **Static Server Rendering** for speed and SEO. Only apply InteractiveServer or InteractiveWebAssembly to the specific components that actually *need* real-time interactivity. This hybrid approach is the key to a high-performance modern web app."