Premmerce WooCommerce Product Filter plugin is a convenient and flexible tool for managing filters for WooCommerce products. Among the main features of this plugin there is a single widget that manages the display of all available filters. Comparing to the standard WooCommerce filters, Premmerce WooCommerce Product Filter has a well thought out caching system for the load speed improving.
Full documentation is available here: Premmerce WooCommerce Product Filter
We recommend that you look through the following research:
The comparison of the load speed of the WooCommerce filters and Premmerce WooCommerce Product Filter with the cache plugins