How to turn ship smoothly to mouse position when mouse click?

Hi, i'm relatively new to Unity and coding. I'm trying to make a simple 2D ship movement script based on mouse click. But i want it to turn realistically (slowly) like a ship in space to the mouse click instead of instantly. can someone help?

 public class MouseMovement : MonoBehaviour {
  
     public float speed = 1;
     private Vector3 target;
     private Vector3 direction;
 
     void Start () {
          target = transform.position;
      }
 
      
     void Update ()
     {
 
 
 
         if (Input.GetMouseButtonDown (0)) {
             target = Camera.main.ScreenToWorldPoint (Input.mousePosition);
             target.z = transform.position.z;
 
             direction = target - transform.position;
 
             transform.rotation = Quaternion.LookRotation (Vector3.forward, direction);
         }
 
          transform.position = Vector3.MoveTowards(transform.position, target, speed * Time.deltaTime);
 
 
      }    
  }