Texture offset only on enemy death

I want to offset the texture only when an enemy dies. The code i have written makes the texture offset with a jerk. i need to have it smooth. here is the code that i have written

     public float scrollSpeed;
     private Vector2 savedOffset;
     public static float ox;
     public static float oy;
     public static float x;
     public static float y;
 
     
     void Start () {
         savedOffset = GetComponent<Renderer>().sharedMaterial.GetTextureOffset ("_MainTex");
     }
     
     void Update () {
 
 
                 y = Mathf.Repeat (Time.time * scrollSpeed, 1);
                 x = Mathf.Repeat (Time.time * scrollSpeed, 1);
                 Vector2 offset = new Vector2 (ox, oy);
                 GetComponent<Renderer> ().sharedMaterial.SetTextureOffset ("_MainTex", offset);
             }    
     
     void OnDisable () {
         GetComponent<Renderer>().sharedMaterial.SetTextureOffset ("_MainTex", savedOffset);
     }
 }

ox and oy are set by random range between the -x,x and -y,y when the enemy dies in the enemy script. Thanks for the help!