SELECT 
  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 = 'fr' 
  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 = 'fr' 
  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 = 3 
    AND cscart_ult_objects_sharing.share_object_type = 'product_features'
  ) 
WHERE 
  f.status IN ('A') 
  AND v.product_id = 3325 
  AND f.display_on_catalog = 'Y' 
  AND (
    f.categories_path = '' 
    OR FIND_IN_SET(737, f.categories_path) 
    OR FIND_IN_SET(902, f.categories_path) 
    OR FIND_IN_SET(808, f.categories_path) 
    OR FIND_IN_SET(1001, 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 = 'fr' 
ORDER BY 
  fd.description, 
  fv.position

Query time 0.00140

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY v ref PRIMARY,fl,variant_id,lang_code,product_id,fpl,product_id_idx,feature_id_idx,variant_id_idx,value_idx,feature_value_product_idx,product_feature_idx product_id 3 const 74 Using where; Using temporary; Using filesort
1 PRIMARY f eq_ref PRIMARY,status PRIMARY 3 mahm3t_cs443.v.feature_id 1 Using where
1 PRIMARY fd eq_ref PRIMARY PRIMARY 9 mahm3t_cs443.v.feature_id,const 1 Using where
1 PRIMARY fv eq_ref PRIMARY PRIMARY 3 mahm3t_cs443.v.variant_id 1
1 PRIMARY vd eq_ref PRIMARY PRIMARY 9 mahm3t_cs443.fv.variant_id,const 1 Using where
1 PRIMARY gf eq_ref PRIMARY PRIMARY 3 mahm3t_cs443.f.parent_id 1 Using where
1 PRIMARY cscart_ult_objects_sharing eq_ref PRIMARY PRIMARY 159 mahm3t_cs443.v.feature_id,const,const 1 Using where; Using index
2 DEPENDENT SUBQUERY df eq_ref PRIMARY PRIMARY 3 mahm3t_cs443.f.parent_id 1

Result

feature_id value value_int variant_id feature_type description prefix suffix variant parent_id position gposition
176 6264 M Compatible avec Dakea 0 0
176 6265 M Compatible avec Dakstra 0 0
176 6266 M Compatible avec RoofLITE+ 0 0
176 6267 M Compatible avec Solstro 0 0
176 6268 M Compatible avec Luxtra 0 0
176 6269 M Compatible avec Luminatec 0 0
176 6272 M Compatible avec Balio 0 0
24 107 S Contrôle manuel 18 100 0
135 5963 M Functions Contrôler la lumière 18 110 0
135 5964 M Functions Occulter la lumière 18 110 0
135 5967 M Functions Décorer 18 110 0
135 5968 M Functions Confidentialité accrue 18 110 0
136 5972 M Objectif Chambre 18 120 0
136 5976 M Objectif Chambre des enfants 18 120 0