If you do not need this class then drop out of it. However, if it is a class you need, then you need to focus on the big picture which is getting your degree. Your photoreading will be helpful by suggesting to yourself that this information is important and will be useful to you, and that it is important for you to recall this information when you want or need it. And yes, you will need it to complete the class with a good grade. Just do it! In a short time it will be over and you will be on to other subjects you enjoy.
If you need to be taking this class, you can do this knowing that boring classes do not last forever.
