Heavy books

SELECT 1 AS `status`, `e`.`entity_id`, `e`.`type_id`, `e`.`attribute_set_id`, `cat_index`.`position` AS `cat_index_position`, `e`.`name`, `e`.`short_description`, `e`.`sku`, `e`.`price`, `e`.`special_price`, `e`.`special_from_date`, `e`.`special_to_date`, `e`.`small_image`, `e`.`thumbnail`, `e`.`tier_price`, `e`.`news_from_date`, `e`.`news_to_date`, `e`.`url_key`, `e`.`required_options`, `e`.`image_label`, `e`.`small_image_label`, `e`.`thumbnail_label`, `e`.`msrp_enabled`, `e`.`msrp_display_actual_price_type`, `e`.`msrp`, `e`.`tax_class_id`, `e`.`price_type`, `e`.`weight_type`, `e`.`price_view`, `e`.`shipment_type`, `e`.`links_purchased_separately`, `e`.`links_exist`, `e`.`delivery_time`, `e`.`interpret`, `e`.`remove_compare_link`, `e`.`neu_gebraucht`, `e`.`neu_gebraucht_value`, `e`.`groesse`, `e`.`groesse_value`, `e`.`tws_distro`, `e`.`voe_timestamp`, `e`.`sonderangebot`, `e`.`fsk`, `e`.`artikelnrwaszahl`, `e`.`bestand`, `e`.`basisartikelnr`, `e`.`ebay_gesperrt`, `e`.`ean`, `e`.`amazon_artikel_was`, `e`.`real_image`, `e`.`discogs_release_code`, `e`.`base_price_amount`, `e`.`base_price_unit`, `e`.`base_price_base_amount`, `e`.`shoppingfeeddesc`, `price_index`.`price`, `price_index`.`tax_class_id`, `price_index`.`final_price`, IF(price_index.tier_price IS NOT NULL, LEAST(price_index.min_price, price_index.tier_price), price_index.min_price) AS `minimal_price`, `price_index`.`min_price`, `price_index`.`max_price`, `price_index`.`tier_price`, GROUP_CONCAT(DISTINCT groesse ORDER BY groesse_value DESC SEPARATOR ',') AS `basisartikelnr_groesse_ids`, GROUP_CONCAT(DISTINCT neu_gebraucht ORDER BY neu_gebraucht_value DESC SEPARATOR ',') AS `basisartikelnr_neu_gebraucht_ids`, COUNT(*) AS `basisartikelnr_count` FROM `catalog_product_flat_5` AS `e` INNER JOIN `catalog_category_product_index` AS `cat_index` ON cat_index.product_id=e.entity_id AND cat_index.store_id=5 AND cat_index.visibility IN(2, 4) AND cat_index.category_id='81' INNER JOIN `catalog_product_index_price` AS `price_index` ON price_index.entity_id = e.entity_id AND price_index.website_id = '1' AND price_index.customer_group_id = 0 WHERE (e.fsk != 'Indiziert') AND (e.fsk != 'SPIO/JK') GROUP BY `basisartikelnr` ORDER BY `e`.`name` ASC LIMIT 12