One way to fix this is to use a GoPro Video Converter to convert your GoPro video files to other video formats that are compatible with your chromebook.
This is because that it is very heavy to decode and play the gopro videos. If you experience choppy, jerky, or broken up playback. However, after recording, you may want to edit, trim, or play videos on your chromebook, you may realize that the videos are not supported. The GoPro Hero offers very good video quality for the money, gets you into the large mount ecosystem and the integrated housing is waterproof. How to convert gopro videos to edit on chromebook