Fix Our Woocommerce Site

Seeking an expert in woo-commerce and wordpress to make fixes to our site www.gtfoitsvegan.com -- the largest online vegan and plant based retailer and wholesaler in the U.S. Specifically we need to significantly improve the mobile experience; in addition we need to improve the approach to menus and drop downs, filtering, and helping customers navigate to the right products. Finally, we need to significantly improve the speed and performance.