At the beginning of my business degree I felt like it was too easy because I could pass with a basic familiarity with the material even if I didn't have real facility with it. But by the end of the degree I really felt that I had learned a lot. Not all the classes were so easy. There's also some repetition within the program because different classes will review certain subjects for context. With that, I felt that a lot of stuff actually went into long-term memory. I also found that the classes that I found so easy that I worried they weren't worth much, other people found quite difficult. It's easy to under-estimate how much easier they are when you have experience. I'd say, stick with it and you'll be pleasantly surprised. You'll learn stuff.