The reason these feeds are "free" is not because they are a public service; it is because they are .
When users rapidly change values (like adjusting a slider or typing text), updating the frame on every single keystroke causes bottlenecks. Use throttling to limit updates to a fixed interval, or debouncing to wait until the user pauses. RequestAnimationFrame (rAF) Interception viewerframe mode refresh free
Seeing live updates from collaborators.