Right now large ships as a player are really silly thematically. They act like small ships would, essentially flying at enemies, shooting all weapons while facing them, and perhaps flying past again as if they were doing an attack run if fighting a difficult enemy.
What I would expect to be happening for a large ship, is for it to be slowly moving around and broadsiding the enemy, with it's various turrets shooting at appropriate targets (e.g anti-hull weapons at shielded ships, anti-shield weapons at others, Gatling guns at fighters and missiles coming at it). To turn the ship and have every single gun fired by the player is really bizarre and doesn't make much sense.
I would actually go so far as to say there should be a limit on the number of turrets a player can control at a time, say 4-6. Given how crazy powerful large ships are right now, this would tilt the scales slightly back towards smaller ships. Or reduce the damage past the first 4 turrets fired together, because the ship captain is obviously having to use a computer instead of gunner crews to coordinate them all together.
I also don't understand why all turrets don't have independent targeting, given there are 4 crewmen operating them. Manual firing turrets already has a huge advantage; you can focus fire on one target at a time, instead of spreading your DPS. But instead the game goes so far to to nerf independently targeting turrets even further by reducing their damage artificially.
This, or at least let me fire my 100 gunner crewmen and still use the turrets, because they're not doing anything for me right now.