I do my work on a MAC, i use Safari browser, or at least I did. Lately, i have been finding Safari having trouble with my Wordpress/WooCommerce site, it can't load product variations and just seems very slow and laggy in WP. Trying to load product various just gives the spinning beachball. Load up Chrome and the variations load ok. I have deleted cookies etc, restarted, all the usual, Safari just will not load product variations. What is the best browser to use???