The limits of biplanes for modern carrier early warning

Why do modern navies not use biplanes for carrier airborne early warning and maritime patrol?

Their endurance is attractive, but the drag and resulting speed limits are severe for modern carrier operations.

A long-endurance aircraft with low take-off and landing speeds has obvious appeal for carrier early warning or maritime patrol. A biplane gains lift and compact low-speed performance, but the second wing and its interference create substantial drag. That penalty caps transit speed and makes it harder for the aircraft to reposition with a modern carrier group. A variable arrangement that could shift between one wing and two would probably become too heavy and complex. Endurance alone therefore does not compensate for the speed and integration costs imposed on the rest of the air operation.