Required delay on quantity change with +/- buttons

Thanks for plugin, in general works perfectly on my website but there is a highly desirable feature missing.

Is it possible to add a slight delay on cart update when using +/- buttons for quantity change in popup window?

With current settings if I want to change quantity from 1 to 5 or vise versa with +/- buttons I need to wait for 4 updates of cart what takes some time and can be annoying.

Logic I’m talking about is implemented in Ajax Cart AutoUpdate for WooCommerce plugin but my knowledge level doesn’t allow me to transfer it to WooCommerce added to cart popup.

Grateful in advance.