Speed ​​Up Video will help you speed up or slow down the video. After installing the extension in each video, a speed control panel will appear on the top left. You can adjust the speed with the plus, minus buttons or through the drop-down list. You can return the video to normal speed using the "refresh" button.
Speed ​​Up Video can be disabled in the popup for a specific site or completely for all sites.
After loading the page, the video speed control panel is automatically hidden, so that the video speed control panel reappears, just hover your mouse over the upper left corner of the video window.
Also in the settings you can set the buttons for controlling the video speed from the keyboard.