UI Button for Unity with better responsiveness

ButtonUI.cs

using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class ButtonUI : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IPointerExitHandler {
    public UnityEvent onPressEvent = new UnityEvent();

    [SerializeField] Button button;

    bool isPressed;

    public bool Interactable {
        get { return button.interactable; }
        set {
            button.interactable = value;
            Refresh();
        }
    }

    public bool IsPressed() {
        return isPressed;
    }
 
    public void OnPointerDown(PointerEventData eventData) {
        if (Interactable) {
            isPressed = true;
            Refresh();
        }
    }

    public void OnPointerUp(PointerEventData eventData) {
        if (isPressed) {
            isPressed = false;
            Refresh();
        }
    }

    public void OnPointerExit(PointerEventData eventData) {
        if (isPressed) {
            isPressed = false;
            Refresh();
        }
    }

    public virtual void OnPress() {
        onPressEvent.Invoke();
    }

    protected virtual void Awake() {
        button.onClick.AddListener(OnPress);
    }

    protected virtual void OnEnable() {
        Refresh();
    }

    protected virtual void OnDestroy() {
        button.onClick.RemoveListener(OnPress);
    }

    protected virtual void Refresh() {}
}