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SELECT 
  v.product_id, 
  v.feature_id, 
  v.value, 
  v.value_int, 
  v.variant_id, 
  f.feature_type, 
  fd.description, 
  fd.prefix, 
  fd.suffix, 
  vd.variant, 
  f.parent_id, 
  f.position, 
  gf.position as gposition 
FROM 
  cscart_product_features as f 
  LEFT JOIN cscart_product_features_values as v ON v.feature_id = f.feature_id 
  LEFT JOIN cscart_product_features_descriptions as fd ON fd.feature_id = v.feature_id 
  AND fd.lang_code = 'en' 
  LEFT JOIN cscart_product_feature_variants fv ON fv.variant_id = v.variant_id 
  LEFT JOIN cscart_product_feature_variant_descriptions as vd ON vd.variant_id = fv.variant_id 
  AND vd.lang_code = 'en' 
  LEFT JOIN cscart_product_features as gf ON gf.feature_id = f.parent_id 
  AND gf.feature_type = 'G' 
  INNER JOIN cscart_ult_objects_sharing ON (
    cscart_ult_objects_sharing.share_object_id = f.feature_id 
    AND cscart_ult_objects_sharing.share_company_id = 1 
    AND cscart_ult_objects_sharing.share_object_type = 'product_features'
  ) 
WHERE 
  f.status IN ('A') 
  AND v.product_id in (370) 
  AND f.display_on_catalog = 'Y' 
  AND f.feature_id in (18) 
  AND (
    f.categories_path = '' 
    OR FIND_IN_SET(308, f.categories_path) 
    OR FIND_IN_SET(3, f.categories_path) 
    OR FIND_IN_SET(13, f.categories_path) 
    OR FIND_IN_SET(48, f.categories_path) 
    OR FIND_IN_SET(49, f.categories_path) 
    OR FIND_IN_SET(6, f.categories_path) 
    OR FIND_IN_SET(200, f.categories_path) 
    OR FIND_IN_SET(51, f.categories_path) 
    OR FIND_IN_SET(53, f.categories_path) 
    OR FIND_IN_SET(55, f.categories_path) 
    OR FIND_IN_SET(56, f.categories_path) 
    OR FIND_IN_SET(57, f.categories_path) 
    OR FIND_IN_SET(192, f.categories_path) 
    OR FIND_IN_SET(60, f.categories_path) 
    OR FIND_IN_SET(61, f.categories_path) 
    OR FIND_IN_SET(244, f.categories_path) 
    OR FIND_IN_SET(62, f.categories_path) 
    OR FIND_IN_SET(119, f.categories_path) 
    OR FIND_IN_SET(64, f.categories_path) 
    OR FIND_IN_SET(65, f.categories_path) 
    OR FIND_IN_SET(181, f.categories_path) 
    OR FIND_IN_SET(67, f.categories_path) 
    OR FIND_IN_SET(68, f.categories_path) 
    OR FIND_IN_SET(69, f.categories_path) 
    OR FIND_IN_SET(70, f.categories_path) 
    OR FIND_IN_SET(71, f.categories_path) 
    OR FIND_IN_SET(226, f.categories_path) 
    OR FIND_IN_SET(73, f.categories_path) 
    OR FIND_IN_SET(122, f.categories_path) 
    OR FIND_IN_SET(74, f.categories_path) 
    OR FIND_IN_SET(75, f.categories_path) 
    OR FIND_IN_SET(76, f.categories_path) 
    OR FIND_IN_SET(77, f.categories_path) 
    OR FIND_IN_SET(79, f.categories_path) 
    OR FIND_IN_SET(80, f.categories_path) 
    OR FIND_IN_SET(81, f.categories_path) 
    OR FIND_IN_SET(82, f.categories_path) 
    OR FIND_IN_SET(83, f.categories_path) 
    OR FIND_IN_SET(84, f.categories_path) 
    OR FIND_IN_SET(85, f.categories_path) 
    OR FIND_IN_SET(86, f.categories_path) 
    OR FIND_IN_SET(87, f.categories_path) 
    OR FIND_IN_SET(88, f.categories_path) 
    OR FIND_IN_SET(89, f.categories_path) 
    OR FIND_IN_SET(90, f.categories_path) 
    OR FIND_IN_SET(91, f.categories_path) 
    OR FIND_IN_SET(254, f.categories_path) 
    OR FIND_IN_SET(273, f.categories_path) 
    OR FIND_IN_SET(275, f.categories_path) 
    OR FIND_IN_SET(281, f.categories_path) 
    OR FIND_IN_SET(2, f.categories_path) 
    OR FIND_IN_SET(8, f.categories_path) 
    OR FIND_IN_SET(304, f.categories_path) 
    OR FIND_IN_SET(306, f.categories_path)
  ) 
  AND IF(
    f.parent_id, 
    (
      SELECT 
        status 
      FROM 
        cscart_product_features as df 
      WHERE 
        df.feature_id = f.parent_id
    ), 
    'A'
  ) IN ('A') 
  AND (
    v.variant_id != 0 
    OR (
      f.feature_type != 'C' 
      AND v.value != ''
    ) 
    OR (f.feature_type = 'C') 
    OR v.value_int != ''
  ) 
  AND v.lang_code = 'en' 
ORDER BY 
  fd.description, 
  fv.position

Query time 0.00082

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    },
    "subqueries": [
      {
        "query_block": {
          "select_id": 2,
          "table": {
            "message": "Impossible WHERE noticed after reading const tables"
          }
        }
      }
    ]
  }
}