SELECT 
  pf.feature_id, 
  pf.company_id, 
  pf.feature_type, 
  pf.parent_id, 
  pf.display_on_product, 
  pf.display_on_catalog, 
  pf.display_on_header, 
  pf.categories_path, 
  pf.status, 
  pf.comparison, 
  pf.position, 
  pf.purpose, 
  pf.feature_style, 
  pf.filter_style, 
  pf.feature_code, 
  pfd.description, 
  pfd.lang_code, 
  pfd.prefix, 
  pfd.suffix, 
  pfd.full_description, 
  pfv.value, 
  pfv.variant_id, 
  pfv.value_int, 
  pfv.product_id 
FROM 
  cscart_product_features_values AS pfv 
  LEFT JOIN cscart_product_features AS pf ON pfv.feature_id = pf.feature_id 
  LEFT JOIN cscart_product_features_descriptions AS pfd ON pfd.feature_id = pf.feature_id 
  AND pfd.lang_code = 'en' 
WHERE 
  1 = 1 
  AND pfv.product_id IN (
    11360, 11359, 11358, 11357, 11356, 11355, 
    11354, 11353, 11352, 11351, 11350, 
    11349, 11348, 11347, 11346, 11345, 
    11344, 11343, 11342, 11341, 11340, 
    11339, 11338, 11337, 11336, 11335, 
    11334, 11333, 11332, 11331, 11330, 
    11329, 11328, 11327, 11326, 11325, 
    11324, 11323, 11322, 11321, 11409, 
    11408, 11407, 11406, 11405, 11404, 
    11403, 11402, 11401, 11400, 11399, 
    11398, 11397, 11396, 11395, 11394, 
    11393, 11392, 11391, 11390, 11389, 
    11388, 11387, 11386, 11385, 11384, 
    11383, 11382, 11381, 11380, 11379, 
    11378, 11377, 11376, 11375, 11374, 
    11373, 11372, 11371, 11370, 11369, 
    11368, 11367, 11366, 11365, 11364, 
    11363, 11362, 11361, 11320
  ) 
  AND pfv.lang_code = 'en' 
  AND pf.feature_code IN ('Brand', 'ISBN', 'GTIN', 'MPN')

Query time 0.01259

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "4133.87"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "pfv",
          "access_type": "range",
          "possible_keys": [
            "PRIMARY",
            "fl",
            "lang_code",
            "product_id",
            "fpl",
            "idx_product_feature_variant_id"
          ],
          "key": "product_id",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "3",
          "rows_examined_per_scan": 6237,
          "rows_produced_per_join": 2662,
          "filtered": "42.69",
          "index_condition": "(`gaseus`.`pfv`.`product_id` in (11360,11359,11358,11357,11356,11355,11354,11353,11352,11351,11350,11349,11348,11347,11346,11345,11344,11343,11342,11341,11340,11339,11338,11337,11336,11335,11334,11333,11332,11331,11330,11329,11328,11327,11326,11325,11324,11323,11322,11321,11409,11408,11407,11406,11405,11404,11403,11402,11401,11400,11399,11398,11397,11396,11395,11394,11393,11392,11391,11390,11389,11388,11387,11386,11385,11384,11383,11382,11381,11380,11379,11378,11377,11376,11375,11374,11373,11372,11371,11370,11369,11368,11367,11366,11365,11364,11363,11362,11361,11320))",
          "cost_info": {
            "read_cost": "2562.89",
            "eval_cost": "266.27",
            "prefix_cost": "2829.16",
            "data_read_per_join": "2M"
          },
          "used_columns": [
            "feature_id",
            "product_id",
            "variant_id",
            "value",
            "value_int",
            "lang_code"
          ],
          "attached_condition": "(`gaseus`.`pfv`.`lang_code` = 'en')"
        }
      },
      {
        "table": {
          "table_name": "pf",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "feature_id"
          ],
          "key_length": "3",
          "ref": [
            "gaseus.pfv.feature_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1065,
          "filtered": "40.00",
          "cost_info": {
            "read_cost": "665.67",
            "eval_cost": "106.51",
            "prefix_cost": "3761.10",
            "data_read_per_join": "1M"
          },
          "used_columns": [
            "feature_id",
            "feature_code",
            "company_id",
            "purpose",
            "feature_style",
            "filter_style",
            "feature_type",
            "categories_path",
            "parent_id",
            "display_on_product",
            "display_on_catalog",
            "display_on_header",
            "status",
            "position",
            "comparison"
          ],
          "attached_condition": "(`gaseus`.`pf`.`feature_code` in ('Brand','ISBN','GTIN','MPN'))"
        }
      },
      {
        "table": {
          "table_name": "pfd",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "feature_id",
            "lang_code"
          ],
          "key_length": "9",
          "ref": [
            "gaseus.pfv.feature_id",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1065,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "266.27",
            "eval_cost": "106.51",
            "prefix_cost": "4133.87",
            "data_read_per_join": "2M"
          },
          "used_columns": [
            "feature_id",
            "description",
            "full_description",
            "prefix",
            "suffix",
            "lang_code"
          ]
        }
      }
    ]
  }
}