Hello,
Thank you for using our theme!
1) Go to Theme Options > WooCommerce > Shop > Shop page layout > Product Added Notification > disable it http://prntscr.com/uhq4a8
2) Do you use global attribute for this product https://lautwear.com/shop/women/women-tshirts/human/ or the custom one? http://prntscr.com/uhq76r Use the global one if you want to have the variation swatches.
3) By additional customization only. WPBakery limits the fonts, unfortunately, so to add more font-weight you can copy et_rewrite_vc_google_font function from the xstore/framework/vc.php to child theme functions.php and add more fonts.
Regards
