Framerate drops while hovering over inventory about kis HOT 4 CLOSED

[KSPAddon(KSPAddon.Startup.EditorAny, true)]
public class InitPartActionWindowTracker : MonoBehaviour
{
    private void Awake() { UIPartActionWindowTracker.Init(); }
}

[KSPAddon(KSPAddon.Startup.Flight, true)]
public class FlightBootstrapper : InitPartActionWindowTracker
{
}


public class UIPartActionWindowTracker
{
    private class WindowTrackerComponent : MonoBehaviour
    {
        private void Awake() { Add(GetComponent<UIPartActionWindow>()); }
        private void OnDestroy() { Remove(GetComponent<UIPartActionWindow>()); }
    }


    public static readonly List<UIPartActionWindow> Windows = new List<UIPartActionWindow>();

    public static void Init()
    {
        if (UIPartActionController.Instance.windowPrefab.gameObject.GetComponent<WindowTrackerComponent>() == null)
            UIPartActionController.Instance.windowPrefab.gameObject.AddComponent<WindowTrackerComponent>();
    }

    private static void Add(UIPartActionWindow window)
    {
        if (window != null && !Windows.Contains(window))
            Windows.Add(window);
    }

    private static void Remove(UIPartActionWindow window)
    {
        if (window != null && Windows.Contains(window))
            Windows.Remove(window);
    }
}