Why Vanguard was technically superior to Tirpitz

Was Tirpitz a better battleship than HMS Vanguard?

No. Vanguard was the more efficient and technically advanced design, while Germany's post-First World War maritime constraints limited what its industry could produce.

Vanguard was the more efficient and technically advanced design. Its reused 15-inch guns can make the ships look more comparable than they were. Tirpitz and Bismarck represented the best Germany could build within the political and industrial circumstances of their time, rather than a universal technical optimum. Their design ceiling reflected the restrictions and disruption imposed on Germany's maritime industry after the First World War, rather than a lack of engineering talent.