Question Camera stutters on build but not in editor

I've upgraded my project to the new input system and created a new camera look script from a tutorial I found. In my editor everything runs very well but once it's built the camera stutters whenever I look around. Anyone have an idea why?

Code (CSharp):

1. public class MouseLook : MonoBehaviour
2. {
3. #pragma warning disable 649
4.  
5.     public float sensitivityX = 1f;
6.     public float sensitivityY = 0.5f;
7.     float mouseX, mouseY;
8.  
9.     [SerializeField] Transform playerCamera;
10.     [SerializeField] float xClamp = 85f;
11.     float xRotation = 0f;
12.  
13.     private void Start()
14.     {
15.         Application.targetFrameRate = 300;
16.         Cursor.lockState = CursorLockMode.Locked;
17.         Cursor.visible = false;
18.     }
19.  
20.     private void Update()
21.     {
22.         transform.Rotate(Vector3.up, mouseX * Time.deltaTime);
23.  
24.         xRotation -= mouseY;
25.         xRotation = Mathf.Clamp(xRotation, -xClamp, xClamp);
26.         Vector3 targetRotation = transform.eulerAngles;
27.         targetRotation.x = xRotation;
28.         playerCamera.eulerAngles = targetRotation;
29.     }
30.  
31.     public void ReceiveInput(Vector2 mouseInput)
32.     {
33.         mouseX = mouseInput.x * sensitivityX;
34.         mouseY = mouseInput.y * sensitivityY;
35.     }
36.  
37. }

 

I forgot to mention that the program runs well and smooth until I started moving the camera around. The camera look script I had on the old input system worked fine so It's something with the new input system I believe.