how to prevent heartanimation to increase size of the tool?

[EmilAlipiev]

Using heart animation on a label with a button click, if user taps the button sequentially so fast ,it increases the size of the label. how can we prevent it?

I tried below but it doesnt help.

 private void btnAddItemTapped(object sender, EventArgs e)
        {
            if (IsAnimating)
                return;

            IsAnimating = true;
            lblTest.Animate(new HeartAnimation());
            IsAnimating = false;
          
        }
        bool IsAnimating = false;