Only load WooCommerce scripts on shop pages and checkout + cart

woocommerce-optimize-scripts.php

/**
 * Optimize WooCommerce Scripts
 * Remove WooCommerce Generator tag, styles, and scripts from non WooCommerce pages.
 */
add_action( 'wp_enqueue_scripts', 'child_manage_woocommerce_styles', 99 );

function child_manage_woocommerce_styles() {
	//remove generator meta tag
	remove_action( 'wp_head', array( $GLOBALS['woocommerce'], 'generator' ) );

	//first check that woo exists to prevent fatal errors
	if ( function_exists( 'is_woocommerce' ) ) {
		//dequeue scripts and styles
		if ( ! is_woocommerce() && ! is_cart() && ! is_checkout() ) {
			wp_dequeue_style( 'woocommerce_frontend_styles' );
			wp_dequeue_style( 'woocommerce_fancybox_styles' );
			wp_dequeue_style( 'woocommerce_chosen_styles' );
			wp_dequeue_style( 'woocommerce_prettyPhoto_css' );
			wp_dequeue_script( 'wc_price_slider' );
			wp_dequeue_script( 'wc-single-product' );
			wp_dequeue_script( 'wc-add-to-cart' );
			wp_dequeue_script( 'wc-cart-fragments' );
			wp_dequeue_script( 'wc-checkout' );
			wp_dequeue_script( 'wc-add-to-cart-variation' );
			wp_dequeue_script( 'wc-single-product' );
			wp_dequeue_script( 'wc-cart' );
			wp_dequeue_script( 'wc-chosen' );
			wp_dequeue_script( 'woocommerce' );
			wp_dequeue_script( 'prettyPhoto' );
			wp_dequeue_script( 'prettyPhoto-init' );
			wp_dequeue_script( 'jquery-blockui' );
			wp_dequeue_script( 'jquery-placeholder' );
			wp_dequeue_script( 'fancybox' );
			wp_dequeue_script( 'jqueryui' );
		}
	}

}