How to speed up a video in real time online ?

1. Upload    any video file
2. Hover the upload video icon    and to turn the mouse wheel  🖱  to select the playing speed
3. In the beginning the speed decrease from 1 to 0 before to return to its original speed  =  1
4. Start to record   your video
5. To speed up the video in realtime as the video playing continue to turn the mouse wheel  until to reach the maximum speed = 5
6.   Pause your video
7.  Download  with speed changed