Does not scale well for large numbers of product variations

When this plugin is used with a variable product, it appears to perform 3 additional database queries on the product page for every product variation. For example, if you have a variable product with 10 different colors and 5 different sizes, it will perform 10 × 5 × 3 = 150 additional database queries on the product page. This is likely to cause a noticeable increase in page load time. (For purposes of comparison, WordPress and WooCommerce combined perform only about 70 database queries on the same page.) I would not recommend using this plugin unless your store has only simple products (or perhaps variable products with only a small number of variations).