Camera dragging stutters at some point...

Unity Engine
1

Hey there !

I still dont know why, but after some time my camera script begins to stutter. Mostly when i just click without moving the camera… than it stutters horrible. Anyone already had this iusse ? Could need some help !

public class CameraMovement : MonoBehaviour
    {
        [SerializeField]
        float _panSpeed = 20f;

        [SerializeField]
        float _zoomSpeed = 50f;

        [SerializeField]
        Camera _referenceCamera;

        Quaternion _originalRotation;
        Vector3 _origin;
        Vector3 _delta;
        bool _shouldDrag;

        void Awake()
        {
            _originalRotation = Quaternion.Euler(0, transform.eulerAngles.y, 0);

            if (_referenceCamera == null)
            {
                _referenceCamera = GetComponent<Camera>();
                if (_referenceCamera == null)
                {
                    throw new System.Exception("You must have a reference camera assigned!");
                }
            }
        }

        void LateUpdate()
        {
            var x = 0f;
            var y = 0f;
            var z = 0f;

            if (Input.GetMouseButton(0))
            {
                var mousePosition = Input.mousePosition;
                mousePosition.z = _referenceCamera.transform.localPosition.y;
                _delta = _referenceCamera.ScreenToWorldPoint(mousePosition) - _referenceCamera.transform.localPosition;
                _delta.y = 0f;
                if (_shouldDrag == false)
                {
                    _shouldDrag = true;
                    _origin = _referenceCamera.ScreenToWorldPoint(mousePosition);
                }
            }
            else
            {
                _shouldDrag = false;
            }

            if (_shouldDrag == true)
            {
                var offset = _origin - _delta;
                offset.y = transform.localPosition.y;
                transform.localPosition = offset;
            }
        }
    }
}

Thanks for your attention and help !

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