Two e-commerce in two different folders of the same domain

I need to create two e-commerce with woocommerce, one in the main directory of my site in Italian and English for online sales in Europe, and one in a subfolder or subdirectory exclusive for Switzerland in CHF with differentiated prices. I would like to know if you have to install wordpress also in the subfolder, so a wordpress installation for each woocommerce plug or can you manage the two online shops even with a single installation? And in any case, what do you recommend for a better performance?