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 (
    10732, 10986, 12218, 12308, 12338, 12350, 
    12354, 12358, 12718, 12767, 12768, 
    12769, 13112, 13121, 13463, 13471, 
    13479, 13914, 13917, 13928, 13933, 
    13936, 14043, 14195, 10584, 10885, 
    13028, 14491, 13918
  ) 
ORDER BY 
  cscart_product_feature_variants.position ASC, 
  cscart_product_feature_variant_descriptions.variant ASC

Query time 0.00414

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "104.41"
    },
    "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": 29,
            "rows_produced_per_join": 29,
            "filtered": "100.00",
            "index_condition": "(`danishecarter_latest`.`cscart_product_feature_variants`.`variant_id` in (10732,10986,12218,12308,12338,12350,12354,12358,12718,12767,12768,12769,13112,13121,13463,13471,13479,13914,13917,13928,13933,13936,14043,14195,10584,10885,13028,14491,13918))",
            "cost_info": {
              "read_cost": "63.81",
              "eval_cost": "5.80",
              "prefix_cost": "69.61",
              "data_read_per_join": "76K"
            },
            "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": 29,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "29.00",
              "eval_cost": "5.80",
              "prefix_cost": "104.41",
              "data_read_per_join": "87K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}