What changes if British and American anti-aircraft systems are swapped

How much would history change if British and American naval anti-aircraft systems were swapped?

The balance between volume of fire and longer-range accuracy would shift, affecting individual actions more than overall campaign results.

In this counterfactual swap, the American side gains a lighter, faster-firing system that puts more shells into the air. The British side gains a more accurate system able to project fire farther away. Ships would also need mounts and internal arrangements designed for the substituted weapons. The large operational outcomes might remain similar, while the detailed pattern of which aircraft are shot down and when could change.