Introduced in recent versions of WooCommerce and WordPress, there is an integrated Password Strength Meter which forces users to use strong passwords. It loads this file:
/wp-includes/js/zxcvbn.min.js Depending on the theme, we’ve noticed that sometimes this file loads across the entire WordPress site. For performance reasons, this should only load on the checkout and password reset pages.
Disable Password Strength Meter
To remove the WordPress and WooCommerce password strength meter scripts from non essential pages, simply click into the Perfmatters settings and enable the “Disable Password Strength Meter” option (as seen below).