SELECT 
  cscart_product_feature_variants.variant_id, 
  cscart_product_feature_variants.position, 
  cscart_product_feature_variants.color, 
  cscart_product_feature_variant_descriptions.variant 
FROM 
  cscart_product_feature_variants 
  LEFT JOIN cscart_product_feature_variant_descriptions ON cscart_product_feature_variants.variant_id = cscart_product_feature_variant_descriptions.variant_id 
  AND cscart_product_feature_variant_descriptions.lang_code = 'ar' 
WHERE 
  cscart_product_feature_variants.variant_id IN (
    7688, 1668, 1666, 1665, 1667, 1945, 2082, 
    2061, 2078, 2249, 2272, 2322, 1758, 
    3006, 3933, 1759, 3779, 3780, 3781, 
    3820, 3961, 4743, 3705, 5110, 4904, 
    4960, 5176, 5225, 5498, 5650, 5658, 
    6198, 6214, 6361, 6600, 7483, 8274, 
    8387, 8457, 8624, 9219, 2362, 8331, 
    7992, 7993, 7990, 7991, 9245, 8000, 
    9152, 8158, 3606, 9168, 9293, 9159
  ) 
ORDER BY 
  cscart_product_feature_variants.position ASC, 
  cscart_product_feature_variant_descriptions.variant ASC

Query time 0.00135

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "57.76"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_product_feature_variants",
            "access_type": "range",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id"
            ],
            "key_length": "3",
            "rows_examined_per_scan": 55,
            "rows_produced_per_join": 55,
            "filtered": "100.00",
            "index_condition": "(`softwarepirmam_hewadelivard_cscart_4`.`cscart_product_feature_variants`.`variant_id` in (7688,1668,1666,1665,1667,1945,2082,2061,2078,2249,2272,2322,1758,3006,3933,1759,3779,3780,3781,3820,3961,4743,3705,5110,4904,4960,5176,5225,5498,5650,5658,6198,6214,6361,6600,7483,8274,8387,8457,8624,9219,2362,8331,7992,7993,7990,7991,9245,8000,9152,8158,3606,9168,9293,9159))",
            "cost_info": {
              "read_cost": "33.01",
              "eval_cost": "5.50",
              "prefix_cost": "38.51",
              "data_read_per_join": "62K"
            },
            "used_columns": [
              "variant_id",
              "color",
              "position"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_product_feature_variant_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.cscart_product_feature_variants.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 55,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "13.75",
              "eval_cost": "5.50",
              "prefix_cost": "57.76",
              "data_read_per_join": "166K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}