Struggling in Honors Precalculus after being in regular math

no, our school does not have AP Physics 1 & 2. He is in AP Physics Mechanics since the teacher will teach any “calculus” related and needed for AP Physics. The guidance counselor is saying he already has a 4th and 5th science class since he has taken AP Computer Sci Principles and AP Computer Science. I feel it needs to show rigor to keep a science class in his senior year…