SELECT 
  `P`.`product_id`, 
  `PFD`.`internal_name` AS `name`, 
  `PFVD`.`variant`, 
  `PFVD`.`variant_id`, 
  `PFD`.`feature_id` 
FROM 
  `cscart_product_features_values` AS `PFV` 
  JOIN `cscart_product_features` AS `PF` ON `PFV`.`feature_id` = `PF`.`feature_id` 
  JOIN `cscart_products` AS `P` ON `P`.`product_id` = `PFV`.`product_id` 
  JOIN `cscart_product_features_descriptions` AS `PFD` ON `PFV`.`feature_id` = `PFD`.`feature_id` 
  JOIN `cscart_product_feature_variants` AS `PFVS` ON `PFVS`.`variant_id` = `PFV`.`variant_id` 
  JOIN `cscart_product_feature_variant_descriptions` AS `PFVD` ON `PFVS`.`variant_id` = `PFVD`.`variant_id` 
WHERE 
  1 
  AND `PF`.`status` = 'A' 
  AND `PFV`.`product_id` IN(
    '33200', '28850', '28836', '32489', 
    '8855'
  )

Query time 0.00102

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "43.21"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "P",
          "access_type": "range",
          "possible_keys": [
            "PRIMARY",
            "cscart_products_product_id_index"
          ],
          "key": "cscart_products_product_id_index",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "3",
          "rows_examined_per_scan": 5,
          "rows_produced_per_join": 5,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "0.76",
            "eval_cost": "0.50",
            "prefix_cost": "1.26",
            "data_read_per_join": "37K"
          },
          "used_columns": [
            "product_id"
          ],
          "attached_condition": "(`dev2`.`P`.`product_id` in ('33200','28850','28836','32489','8855'))"
        }
      },
      {
        "table": {
          "table_name": "PFV",
          "access_type": "ref",
          "possible_keys": [
            "PRIMARY",
            "fl",
            "variant_id",
            "product_id",
            "fpl",
            "idx_product_feature_variant_id"
          ],
          "key": "product_id",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "3",
          "ref": [
            "dev2.P.product_id"
          ],
          "rows_examined_per_scan": 6,
          "rows_produced_per_join": 30,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "2.18",
            "eval_cost": "3.06",
            "prefix_cost": "6.50",
            "data_read_per_join": "23K"
          },
          "used_columns": [
            "feature_id",
            "product_id",
            "variant_id"
          ]
        }
      },
      {
        "table": {
          "table_name": "PF",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY",
            "status"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "feature_id"
          ],
          "key_length": "3",
          "ref": [
            "dev2.PFV.feature_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 24,
          "filtered": "80.46",
          "cost_info": {
            "read_cost": "7.65",
            "eval_cost": "2.46",
            "prefix_cost": "17.22",
            "data_read_per_join": "38K"
          },
          "used_columns": [
            "feature_id",
            "status"
          ],
          "attached_condition": "(`dev2`.`PF`.`status` = 'A')"
        }
      },
      {
        "table": {
          "table_name": "PFVS",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "variant_id"
          ],
          "key_length": "3",
          "ref": [
            "dev2.PFV.variant_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 24,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "6.16",
            "eval_cost": "2.46",
            "prefix_cost": "25.84",
            "data_read_per_join": "37K"
          },
          "used_columns": [
            "variant_id"
          ]
        }
      },
      {
        "table": {
          "table_name": "PFD",
          "access_type": "ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "feature_id"
          ],
          "key_length": "3",
          "ref": [
            "dev2.PFV.feature_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 24,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "6.16",
            "eval_cost": "2.49",
            "prefix_cost": "34.49",
            "data_read_per_join": "68K"
          },
          "used_columns": [
            "feature_id",
            "internal_name"
          ]
        }
      },
      {
        "table": {
          "table_name": "PFVD",
          "access_type": "ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "variant_id"
          ],
          "key_length": "3",
          "ref": [
            "dev2.PFV.variant_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 24,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "6.23",
            "eval_cost": "2.50",
            "prefix_cost": "43.21",
            "data_read_per_join": "105K"
          },
          "used_columns": [
            "variant_id",
            "variant"
          ]
        }
      }
    ]
  }
}

Result

product_id name variant variant_id feature_id
8855 Грузоподъемность, кг 5000 9399 741
28836 Двигатель WEICHAI, WP4.1NQ190E5 14060 735
28836 Мощность двигателя, л.с. 190 9363 737
28836 Грузоподъемность, кг 5800 13780 741
28836 Колесная формула 4х2 14489 744
28836 Тип двигателя Дизельный 9392 751
28836 Страна производитель Китай/Россия 9733 758
28836 Объем двигателя 4088см3 14544 838
28836 Привод Задний 13040 878
28850 Двигатель WEICHAI, WP4.1NQ190E5 14060 735
28850 Мощность двигателя, л.с. 190 9363 737
28850 Грузоподъемность, кг 5800 13780 741
28850 Колесная формула 4x2 8752 744
28850 Тип двигателя Дизельный 9392 751
28850 Страна производитель Китай 9730 758
28850 Объем двигателя 4088см3 14544 838
28850 Привод Задний 13040 878
32489 Мощность двигателя, л.с. 190 9363 737
33200 Двигатель ISUZU 4HK1-TCG61 13099 735
33200 Мощность двигателя, л.с. 190 9363 737
33200 Грузоподъемность, кг 5100 14636 741
33200 Колесная формула 4x2 8752 744
33200 Тип двигателя Дизельный 9392 751
33200 Страна производитель Китай 9730 758
33200 Объем двигателя 5.193 14635 838
33200 Привод Задний 13040 878