Leave those tiny raiders to patrolling for smugglers and pirates and the like. Take a proper ship into naval engagements like any true Imperial would: as a rule of thumb, if a ship is smaller than 500 meters or doesn't have 'Star Destroyer" in its name its not worth bringing.
Spoken like a truly arrogant, Dangerous-to-your-starfleet-Commander-not-to-this-battle-station Imperial admiral.