Hello there

You can use the following code in additional CSS box:

@media screen and (min-width: 1300) {
.woocommerce .products ul, .woocommerce ul.products {
	width: auto;
	margin-left: -3%;
}
.woocommerce ul.products.columns-3 li.product, .woocommerce-page ul.products.columns-3 li.product {
	width: 22%;
	margin-left: 3%;
	margin-right: 0;
}
ul.products li.product.first {
	clear: none;
}
}

For more column option that feature as available in pro version of shopay.

Thanks 🙂