Once Lazy Load has been installed, the trick is to get the product thumbnail to display with the Lazy Load data attribute. Rather than editing your template, you can do this with a custom function. We have used this within a site plugin so it isn’t theme dependent (suggested).
Here’s an example of it in a working environment:
Now if that sounds a bit too difficult, don’t worry. You can still implement LazyLoad for WooCommerce with our plugin!
Download it now from the WordPress Plugins Directory