I don’t think Super Etendard had a lot of remarkable performances.

It out-performed the A-4 ( J65 or J52 engined ) in every numerical aspect, sometimes remarkably so ( initial climb rate was nearly double ) and was quite slippy, could pass Mach 1.0 with a gentle entry dive. And it was also a fairly nimble air-to-air opponent.

It also carried about 10% more fuel than the A-4 which compensated somewhat for using late-1940s engine technology instead of early-1950s 🙂

The only significant advantage held by the A-4 was a legacy of its original nuclear role, the centre hardpoint could lift 3,500 lb, and continual avionics upgrades amongst its first-tier users.