Fix a woocommerce product filtering Issue

We have a multi-level woocommerce product filtering system in a woo store. List items of all the drop down filter is taking a longer time to load data from database. We need this to be fixed quickly so that the product filtering and searching result is very fast and correct. The interested candidate must be be higly skilled and professional in woocommerce who can effectively make decision of any kind of correction in database or code according to the need. More details will be shared with the short listed candidates. Happy Bidding!