Wishlist Hero

The setup was very easy and the Wishlist Hero team was very helpful to make neat and stable with my Impulse theme. Since the launch I have been experiencing suboptimal performance with the app according to speed insights from Google. The wishlist hero javascript is blocking my main loading thread during 0.8s which damages my overall speed score. I'm sure the dev team can do smth about it, i've trying to get an answer from them since months now, without success :(