Asynchronization of transport costs

Hello, I have collected AliExpress products and tested them on my website, and there is a more important problem. For example: I make a sandbox test payment as a German customer PayPal. When AliExpress is shipped to the United States, I place an order with the identity information of a German customer. The shipping fee will not be adjusted according to the country’s shipping costs and taxes. For example, when the product is shipped to the United States, it is 100 US dollars. , and the price when the product is shipped to Germany is also 100 US dollars, and the shipping fee is not synchronized. Is there any way to solve it? In addition, can you add product price rules corresponding to categories?