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 = 'en' 
WHERE 
  cscart_product_feature_variants.variant_id IN (
    18904, 18935, 18937, 18942, 19002, 19211, 
    19214, 19216, 19221, 19226, 21682, 
    18860, 18902, 18933, 18940, 18943, 
    19227, 19242, 19249, 19250, 19251, 
    19252, 19254, 23250, 22754, 22763, 
    22768, 22778, 22797, 21685, 18866, 
    22756, 22781, 22786, 21681, 18934, 
    22753, 22780, 18938, 19217, 19222, 
    22762, 19215, 19220, 19224, 21542, 
    21727, 18948, 19201, 19212, 19245, 
    22775, 23006, 21563, 18848, 23005, 
    23040, 18903, 23035, 22785, 22755, 
    23042, 21601, 21702, 23189, 23208, 
    23264, 22757, 23043
  ) 
ORDER BY 
  cscart_product_feature_variants.position ASC, 
  cscart_product_feature_variant_descriptions.variant ASC

Query time 0.00077

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "248.41"
    },
    "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": 69,
            "rows_produced_per_join": 69,
            "filtered": "100.00",
            "index_condition": "(`danishecarter_latest`.`cscart_product_feature_variants`.`variant_id` in (18904,18935,18937,18942,19002,19211,19214,19216,19221,19226,21682,18860,18902,18933,18940,18943,19227,19242,19249,19250,19251,19252,19254,23250,22754,22763,22768,22778,22797,21685,18866,22756,22781,22786,21681,18934,22753,22780,18938,19217,19222,22762,19215,19220,19224,21542,21727,18948,19201,19212,19245,22775,23006,21563,18848,23005,23040,18903,23035,22785,22755,23042,21601,21702,23189,23208,23264,22757,23043))",
            "cost_info": {
              "read_cost": "151.81",
              "eval_cost": "13.80",
              "prefix_cost": "165.61",
              "data_read_per_join": "182K"
            },
            "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": [
              "danishecarter_latest.cscart_product_feature_variants.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 69,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "69.00",
              "eval_cost": "13.80",
              "prefix_cost": "248.41",
              "data_read_per_join": "208K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}