当前获取我的帖子类型数据的查询时间太长，几乎需要一分钟才能呈现4.6万条记录。是否有筛选器或操作来自定义此帖子类型的SQL函数以及在管理面板中生成的标记？

我正在使用的插件：高级自定义字段、WordPress SEO

function add_custom_groupon() {
    $labels = array(
        \'name\'               => \'Groupon Codes\',
        \'singular_name\'      => \'Groupon Code\',
        \'add_new\'            => \'Add New Code\',
        \'add_new_item\'       => \'Add New Code\',
        \'edit_item\'          => \'Edit Code\',
        \'new_item\'           => \'New Code\',
        \'all_items\'          => \'All Codes\',
        \'view_item\'          => \'View Code\',
        \'search_items\'       => \'Search Codes\',
        \'not_found\'          => \'No codes found\',
        \'not_found_in_trash\' => \'No codes found in trash\',
        \'parent_item_colon\'  => \'\',
        \'menu_name\'          => \'Groupon\'
    );    
    $args = array(
        \'labels\'             => $labels,
        \'public\'             => false,
        \'publicly_queryable\' => false,
        \'show_ui\'            => true,
        \'show_in_menu\'       => true,
        \'query_var\'          => true,
        \'rewrite\'            => array( \'slug\' => \'groupon\' ),
        \'capability_type\'    => \'post\',
        \'has_archive\'        => true,
        \'hierarchical\'       => true,
        \'menu_position\'      => null,
        \'supports\'           => array( \'title\' )
        );    
    register_post_type( \'groupon\', $args );
}
add_action( \'init\', \'add_custom_groupon\' );