Computer Science Prerequisites for Top U.S Colleges

^^ mostly agree. Take Math HL (I assume you’re good at math since you want to study CS). Physics HL might help for some schools (and some schools, including some Ivies, will give you credit even though it is not calculus based). But you should be aware that these two are the most difficult IB courses (after IB Further Math of course).

For the rest, take the classes you enjoy most. IB program is hard and very time consuming. If you don’t enjoy at least most of the classes, it will be harder for you to see the end.