Does changing gameobject scale hit performance?

Hello all, I wanted to know if changing gameobject scale during runtime causes some performance issue? Some years ago I read that changing gameobject scale during runtime or having unequal scales(scale = 1, 1, 0.5) causes some performance issue on both CPU and GPU but this was for another game engine, so I wanted to know if Unity have something similar. If it does cause performance hit then what is the right way of changing the scale continuously during run time?

The platform I am targeting is mobile. I have made a monobehaviour that just changes the scale overtime. So far I have no performance issue but still want to know and do it the correct way.

This is my code for changing the scale over time:

Code (CSharp):

1. public class ScaleController : MonoBehaviour {
2.  
3.     public Vector3 OriginalScale;    // Original scale of the gameobject
4.     public Vector3 TargetScale;      // Target scale of the gameobject
5.     public float Speed;              // Speed of scale change
6.     private float _ScaleCovered = 0; // Scaling factor
7.     private int _Dir = 1;            // Direction of scaling
8.                                      //  1 = Increase scale,
9.                                      // -1 = Decreasing scale
10.    
11.     // Update is called once per frame
12.     void Update () {
13.  
14.         // Incrementing the scaling factor
15.         _ScaleCovered += Speed * _Dir * Time.deltaTime;
16.  
17.         // Condition for starting decreasing the scale
18.         if (_ScaleCovered >= 1) { _ScaleCovered = 1; _Dir = -1; }
19.         // Condition for starting increasing the scale
20.         else if (_ScaleCovered <= 0) { _ScaleCovered = 0; _Dir = 1; }
21.        
22.         // Changing the scale using Slerp
23.         transform.localScale = Vector3.Slerp(OriginalScale,
24.                                             TargetScale,
25.                                             _ScaleCovered);
26.     }
27. }

Thank you.