If you skip this moment, you will not be able to switch and you will have to reinstall the utility from scratch. This option is not critical, but it is much easier to do everything right from scratch.
Next, an interface will open in front of you, exactly the same as in the screenshots. We are sure that you will figure out how to use the tool without our help, but we will clarify the main features:
Both options will lead to approximately the same result, but manual adjustment may be better if you plan to do everything according to professional instructions. If you want to save time or simply have no knowledge, then it is better to trust the utility.
Please note that installing Powerstrip alone will not solve all your graphics problems. If you have a very old device, then perhaps no software solution will help it. If the device is relatively modern, then in addition to the program, install drivers, as well as nVidia ExperienceorAMD Catalyst, depending on what chip is installed in your computer.