Which ship – military or merchant – moved faster across the sea? How to explain the high speed

Which ship – military or merchant – moved faster across the sea? How to explain the high speed of movement of one of the ships?

For a warship, speed is very important. It enables a warship to catch up with the enemy, the necessary maneuverability and ramming force. Therefore, a warship is much faster than a merchant ship.

For a merchant ship, the capacity factor is very important. Its speed is achieved due to the streamlined body shape. Still, they are inferior in speed to warships.