Boost Sales and Add to cart behaviour

Hi, I deactivated “Redirect to the cart page after successful addition” so that I can see the Boost Sales popups. So far, so good.
But I don’t like the behaviour in the popups: When I click “Add to cart” of the Upsell product, the product is added, but the popup just disappears and I see the “old” product page. The user has to find a cart or checkout button.
Isn’t it possible to redirect to the cart page if I click on “Add”?
Best regards, Kai