In the "main settings", Products per page: is set to 200. products.asp still shows just 9 products with paging. No matter what I set it to, it shows the same.
If you are using product filters and have products per page set there, it will override that setting for your browser. Have you tried clearing your cookies?
Yes, I checked the box "Cookies and other site data" and clicked "Clear Data". Closed and reopened Chrome. Still only shows 9 products, https://veniceartcenterstore.com/products.asp
It is possible to override the main settings in the vsadmin/includes.asp or directly on the products.asp page have a look there to see if that is the case.