我需要为我商店中所有登录的客户设置全球5%的折扣（或0.95的利润率）。我使用过滤器来改变所有简单产品和产品变体的价格。为了让它正常工作，我需要为登录用户删除每个产品的产品瞬态。

这很好，但加载时间太长。这对性能的影响似乎很大。

代码如下：

function change_price_for_logged_in_customers($price, $product, $clear_transients) {
    if ( is_user_logged_in() && is_numeric($price) ) {

        // Clear WC transients for variations
        if($clear_transients) {
            wc_delete_product_transients($product->get_id());
        }

        // Apply 5% discount, round up discounted price to 1 decimal
        $logged_in_price = $price*0.95;
        $logged_in_price = number_format((float)$logged_in_price, 1, \'.\', \'\');

        return $logged_in_price;
    }
    return $price;
}

function logged_in_discount_filter($price, $product) {
    return change_price_for_logged_in_customers($price, $product, 0);
}
add_filter(\'woocommerce_product_get_price\', \'logged_in_discount_filter\', 10, 2);

function custom_price( $price, $product ) {
    return change_price_for_logged_in_customers($price, $product, 1);
}
add_filter(\'woocommerce_product_variation_get_price\', \'custom_price\' , 99, 2 );

function custom_variation_price( $price, $variation, $product ) {
    return change_price_for_logged_in_customers($price, $product, 1);
}
add_filter(\'woocommerce_variation_prices_price\', \'custom_variation_price\', 99, 3 );

非常感谢。