I found this part is inconsistent with our UX spec. According to that, it jumps 10 seconds when user just tap 1 and runs 10 times of regular speed when user press and hold it. In this case, we need to handle both tap and long press cases. And at the long press case, we need to `playbackRate` property to change the speed of playback. You may find more information at https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement