Use WordPress customizer API for liveedit. You can see the
change live on edit.
Super easy to change the theme option of your Quick Viewer with
the custom customizer.
Awesome Quick Viewer for WooCommerce has a lite
version it also free.
Show Slider when products gallery exist. Lots
of feature on slider control.
It is a lightweight. Used less dependency so it will
load fast..
Use flexbox for flexible layout. It is
fully responsive.