Answer of your leaving message
When viewing the recorded clip via Timeline on a mobile device, I could only scroll the bar at the bottom to play the clip from a particular time, but unable to fast forward the recorded clip (i.e. viewing the recorded clip in fast motion).
Many thanks!

by Vincent Chim

Dear Vincent, thank you for contacting. The 1x/2x/3x/4x is for the timeline scale shown, not for the fast forward. Sorry for the confusion. The scale is just for how much time to show in the timeline. Thank you.