In the ACG video player, you can use the video navigation buttons to skip back and forward as well as change the playback speed.
To adjust your playback settings, tap on the settings tab on the bottom right corner of the app, then tap on Playback Settings.
Here you can set the default settings for streaming content. As well as set your playback speed, how many seconds you'd like to skip back and forward, and enable Continuous Play so that all videos are played uninterrupted.