The webaudio_orientation example has extremely bad stuttering on Chrome for Android.
The example seems fine on Edge and Firefox (desktop) and Firefox (Android). Other audio examples are not stuttering on Chrome, that I noticed.
Chromium bug report: https://bugs.chromium.org/p/chromium/issues/detail?id=930005
Chrome Android 72.0.3626.96
Chrome Desktop 72.0.3626.96 (Official Build) beta (64-bit)