Early Fireflies against the Italian fleet

What could an earlier Fairey Firefly have done against the Italian Navy before the 1943 armistice?

Its range and later rocket armament would extend a carrier's anti-shipping reach and let the aircraft range widely over the Mediterranean.

An early Firefly would give British carriers a long-ranging aircraft able to search and strike across a broad area. Rockets would make it particularly damaging. The operational payoff is an extension of the carrier's anti-shipping reach instead of a single decisive duel with the Regia Marina.