Nero
Inspired
here you can see how it would behave if you update the display every 100ms and every 200ms, the blue meters have a transition of a a few milliseconds between each change and the red ones have no transition just abrupt
https://jsfiddle.net/neroroxxx/y09pe5n4/
https://jsfiddle.net/neroroxxx/y09pe5n4/