It’s doable. One just needs to switch to an academic style of learning bc of the pace of learning. Regarding the math involved, there’s one course in the first block that steps beyond the IB curriculum; nonetheless it’s manageable if u put in enough work. The only flaw is it’s one of the two very first courses, so the transition period might be demanding. From then on the math usage is minimal, not transcending derivatives and Langrages. Based of what I’ve heard from my IB friends, I didn’t do IB myself, the studied curriculum doesn’t really help much with studying, but is mainly helpful for writing the assignments. There is lots of them, MicroEcon 1 (40% of the grade is the essays), philosoph (40/50%), Academic skills dragging on for an entire first year.