Stopped working (no effect) after latest WC (3.4.0) update

Plugin worked great, right up until WooCommerce updated to the current version (3.4.0). Now, it’s still activated, but has no effect – the AJAX POST call happens, and adds 2.1 seconds to the loading time.

1.) Any chance the plugin will be updated soon?
2.) Any way to manually override this? (I don’t need cart AJAX on home, category, or content pages, only on product pages).
3.) Why the **** doesn’t WooCommerce have a core option to disable this idiocy? NOT EVERYBODY needs a cart AJAX on every page…