Does a lower IQ just mean you have to work harder in school?

Like my IQ is supposedly 97 and I have a learning disability. Basically my disability deals with memory. It's very weird in that I just have to read things over and over and over again and eventually, I remember everything. SO, by the time the test comes, I have the book and the lectures memorized. So, it's basically impossible for me to miss any questions. I mean, it make it so it's basically open lecture and open book for the test because they are in my head. SO what does it matter if my IQ is 97. I can understand everything. It makes absolutely no sense, but I do understand everything I have heard or read. Like I have never not understood a math concept. No, I understand everything, But my IQ is 97! I make no sense at all. Maybe I am just a bad IQ tester...lol? But I am not a bad tester at all, so that makes no sense.