Because it's better at this game than you, the NPC didn't grind it's way to a Corvette or Cutter without learning to fly in the meantime.
The only cheat NPCs are allowed is that they have infinite ammo for things like multi-cannons, this is because otherwise as soon as they ran out of ammo, they fled combat and waked away - and players complained that it was boring when they did that.
Otherwise they fly by the same flight-rules as you do, they're just better at it.
I miss the infinite multi cannon ammo bug.
You just reminded me of the glory days. Lol