Depending on your equipment, you can adjust the overall difficulty of the video from the app. For more information, here's another article explaining the difference between different types of equipment: Interactive, Smart, Classic, what does it mean?
If you have interactive equipment, you will see a difficulty option with '+' and '-' buttons on the right side of the training screen:
100% difficulty means the original difficulty is applied. You can adjust the difficulty from 0% to +200%.
For users with non-interactive equipment, since we cannot control the difficulty of your equipment, instructions will be displayed and a voice will also guide you.