Unity Button Responding Very Slowly

I have several buttons that the user is meant to click on them and it would run a function: SetMultiples() and update some game statistics. However, it seems that rather than executing the function immediately, there is a consider delay of 4-5 seconds before the function is called. I have tried to call the SetMultiples() to respond to a certain keyboard and it seem to run the function immediately. using System.Collections; using UnityEngine.UI; using System.Collections.Generic; using UnityEngine; public class MultiplesButtonClick : MonoBehaviour { public PlayerSelection playerSelection; //enum player selection variable public Button assignedButton; //button assigned to this script public GameObject planetManager; //reference to planet manager public Color selectedColor; public Color originalColor; // Use this for initialization void Start () { planetManager = GameObject.FindGameObjectWithTag("PlanetManager"); assignedButton = GetComponent(); assignedButton.onClick.AddListener(SetMultipes); originalColor = GetComponent().colors.normalColor; selectedColor = Color.gray; } // Update is called once per frame void Update () { } //Function to set the multiples player wants to buy/sell void SetMultipes() { int qty = 0; switch (playerSelection) { case PlayerSelection.ONE: qty = 1; break; case PlayerSelection.FIVE: qty = 5; break; case PlayerSelection.TEN: qty = 10; break; } if (planetManager) { planetManager.GetComponent().ShowMultiples(qty); } } } Can anyone explain to me what am I doing wrongly to cause the delay? I have attached a screen shot of how I have arranged my UI canvas. This script is attached to "One", "Five", "Ten" which are all butttons. ![alt text][1] ![alt text][2] This shows the settings on the canvas itself [1]: /storage/temp/91727-buttonlag.jpg [2]: /storage/temp/91728-buttonlag2.jpg