rotations smooth in scene view but not game view

I have a gun turret that rotates to face the player. What's happening is that the gun barrel is 'skipping' if I have it turn too fast. This doesn't happen when viewed through the scene view, though. Only from the FPS controller camera.

code:

     public float maxRotateSpeed = 40f;
     public float minTimeToReach = 0.5f;
 
     public Transform turretFrame;
     public Transform turretGun;
     Transform _cameraTransform;
     float _velocity;
     float _velocityGun;
     public Transform target;
 
 
 
     void Update () 
     {
         Vector3 newRotation = Quaternion.LookRotation(target.position - turretFrame.position).eulerAngles;
         Vector3 angles = turretFrame.rotation.eulerAngles;
         turretFrame.rotation = Quaternion.Euler(angles.x,Mathf.SmoothDampAngle(angles.y, newRotation.y, ref _velocity, minTimeToReach, maxRotateSpeed),angles.z);
 
         Vector3 gunAngles = turretGun.rotation.eulerAngles;
         turretGun.localRotation = Quaternion.Euler (Mathf.SmoothDampAngle(gunAngles.x, newRotation.x, ref _velocityGun, minTimeToReach, maxRotateSpeed), turretFrame.rotation.y,turretFrame.rotation.z);
     }

this is what my scene looks like (the gun part is a child of the frame part):