The basic functionalty of WZone is to let you import products from Amazon into your WordPress + WooCommerce website. Then, for those products, the plugin will keep your imported products synchronised according to how you set it up. The management of the products in the frontend (how they look, how fast your website will load) depends on how WordPress organises the relationships between tables, how your caching plugin works and how capable your server is to manage everything. With WZone + Kingdom + a dedicated hosting, we were able to test-run a website with more than 10k products, most with A or B Optimization Scores and with a loading time of less than 1 second.