Problems with rotation 2D

Hi , I have a problem with my rotation script , I am making a top down shooter and can you please tell me why it is not working properly. The player should face the mouse but it is not doing it properly . example: my mouse is in the left part of the screen and the player is faceing up. here is the script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class player : MonoBehaviour {
 
     public float speed = 5f;
     
     // Update is called once per frame
     private void Update () {
         Vector2 directie = Camera.main.ScreenToWorldPoint (Input.mousePosition) - transform.position;
         float angle = Mathf.Atan2 (directie.y, directie.x) * Mathf.Rad2Deg;
         Quaternion rotation = Quaternion.AngleAxis (angle, Vector3.forward);
         transform.rotation = Quaternion.Slerp (transform.rotation, rotation, speed * Time.deltaTime);
         
     }
 }