We are using signalr (.net 8) for some new functionality in our Asp.net core api, consumed primarily by a flutter app.

I implicitly know that, in most cases WebSockets is better that Server-sent-events, which are better than Long-Polling.

Is there any data or tests or whitepapers (anything) that (explicitly) outline the performance impact of the fallbacks.

I want this info to emphasize the importance of having WS support on our servers