What is the optimal way to display all attributes in a Woocommerce category?

Question

WordPress

Now in the category I cycle through all the products, get the taxonomy terms, remove the repetitions, display the necessary ones . Everything is ok, everything works.
But in categories in which, for example, 40 thousand products, this process takes 7-10 seconds. Even if I load them asynchronously, it still feels like brakes.
Maybe there is some optimal way to get all the attributes of products in a particular category?
Or at least optimize it visually, in terms of user experience.