What a Belfast-standard Town class would change

What if every Town-class cruiser had been built from the beginning to something like HMS Belfast's standard?

The ships would be larger and better armed, especially for anti-aircraft defence, but the overall effect would probably be limited to changes in individual operations.

A Belfast-like baseline would make the Town-class cruisers larger and give them more anti-aircraft and secondary firepower. Those improvements would not change the war as a whole. The clearest effects would appear in the individual operations of ships such as Birmingham and Liverpool, where the additional weapons could alter local circumstances. No specific engagement is named, so the counterfactual remains a general capability judgment rather than a claim about a particular battle.