Hello, I registered just to answer your question. The program has a glitch that you can take advantage of, these are the simple steps you must follow:
1.- Play the video near the point you want to review and reduce the speed to 1/8X without pausing or stopping playback.
2.- Click on the timeline about 10 seconds before the playback mark.
3.- QUICKLY, click on the speed control and increase from 1/8 to 8X.
The 10 second recommendation in step 2 is because the first few seconds will go by super fast, but after that, the speed will stabilize at what I identify as 16X.
The first few times it will be difficult, but surely with a little practice, it will help you to significantly reduce review times.