HTML5: Delay+Stutter upon Touch

[TrunXGIT]

When playing HTML5 games on a smartphone (Android+Chrome) there is a huge delay (feels like a whole second) before a touch button gets triggered.

In addition there is a stutter / fps drop that brings down the fps below 30 when trying to mash a button (which will not get triggered when only pressed for a short time).

This makes HTML5 games on mobile devices completely unplayable.

Interestingly it's only the case for the first simultaneous touch. If you press two buttons at the same time or press and hold anywhere on the touchscreen (doesn't need to be a button), all other presses trigger immediately.

Attached test project can be played here: https://trunxgit.github.io/HTML5_Touch_Delay/

Test project here: https://github.com/TrunXGIT/HTML5_Touch_Delay/blob/main/HTML5_Touch_Delay_Stutter.yyz
Or here: https://api.gamemaker.io/api/github/downloads/ceb13d7e-d099-4c3a-bf63-646cb30f3e94

Using: Latest Beta 2024.1400.0.822