Playing videos faster can be useful to save time. Research shows that you can watch videos at 1.5x or even 2x the normal speed without understanding less. This way, you can go through the videos faster and use the extra time to study more or watch the videos again. But be careful: if you go faster than 2x, you may not understand what is being said as well.
It is important to know that these results can vary. This depends on how difficult the videos are, how fast the speech is, and how much visual and audio content there is simultaneously. Often, comprehension issues arise from a lack of background information. Therefore, it is wise to first watch videos at a faster speed and then spend extra time on the difficult parts or review them, especially right before a test.
