Teardrop submarine hulls before snorkels

Would a teardrop hull benefit a Second World War submarine before snorkels and related systems?

Not enough to justify the penalty: wartime submarines spent too much time on the surface, where a teardrop hull would reduce their handling and effectiveness.

The hydrodynamic advantage of a teardrop hull matters most when a submarine can remain submerged for long periods. Second World War boats instead spent much of their time traveling and maneuvering on the surface. Optimizing them for underwater performance before snorkels and mature submerged systems would therefore impose a serious penalty in their normal operating condition.