You have more than 12 000 products – https://prnt.sc/et9Pyo59Hny7 , it is the main reason for the speed problem. Any selection from the database with this quantity will take quite a lot of time, that’s why the search, shop and product category pages have such a low speed, and this affects all pages displaying products.
WordPress/WooCommerce does not have limits on the number of products, but you need to take into account the server power. Most likely your server simply cannot quickly process requests with such a number of products.
