Optimize WooCommerce Bookstore Website

Website: https://bookstaq.com Currently, it is a single-vendor online bookstore selling physical academic books for Calcutta University undergraduate students. In the future, I may upgrade to a multi-vendor marketplace, but this project is only for the current single-vendor website... (Budget: ₹1500 - ₹12500 INR, Jobs: AJAX, Frontend Development, HTML, JavaScript, MySQL, PHP, Website Design, Website Optimization, WooCommerce, WordPress)