Why does the JS metronome "stumble" when used on a mobile device?

Question

JavaScript

Good afternoon.
Actually, there is a simple metronome https://tier4ik.github.io/metronome/
On a PC it knocks smoothly, but on a mobile device and an emulator it "stumbles" ...
Is it related to loading audio files or is it audio api and buffering? or something else?
The files themselves https://github.com/tier4ik/tier4ik.github.io/tree/...

Answer 1

Metronome on setInterval? Yes, you are a mega optimist.