> They made it difficult to get a good timing source in JS It's true that Date.now() has a reduced precision, e.g. Firefox with privacy.resistFingerprinting=tr

> They made it difficult to get a good timing source in JS It's true that Date.now() has a reduced precision, e.g. Firefox with privacy.resistFingerprinting=true rounds to the nearest 100 ms increment. But you still get high-precision timestamps from window.requestAnimationFrame(), so you get a precision of at least 16 ms, assuming 60 Hz refresh rate, or even higher on gaming rigs with 144 Hz monitors.