If the student struggle with amaths despite working hard, it is better to take H1 maths. This is because if the student cannot cope with amaths, they will not be able to cope with the much harder h2 maths.
If the student has not taken amaths before, the student can attempt the important amaths topics” Differentiation, integration, trigo, logarithm, surds, indices” and see whether they can cope with it. If they think they can handle h2 maths, be prepared to work twice as hard if they want to take h2 maths.
Students who did not do well in amaths, is still possible to do well in H2 maths.