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 (
    1560, 3418, 1559, 4197, 4606, 4826, 4790, 
    4649, 3825, 3421, 4430, 3625, 2862, 
    4646, 4632, 4722, 4794, 4792, 4204, 
    1558, 1600, 4783, 4758, 4707, 1702, 
    4729, 4726, 4635, 4716, 4648, 4532, 
    4822, 4614, 4610, 1748, 3741, 3641, 
    3921, 4622, 4624, 4626, 3879, 3626, 
    4795, 4829, 4619, 5191, 4640, 4566, 
    1783, 3858, 2696, 4608, 4590, 3967, 
    3742, 3656, 2895, 4252, 2892, 4262, 
    3896, 4793
  ) 
ORDER BY 
  cscart_product_feature_variants.position ASC, 
  cscart_product_feature_variant_descriptions.variant ASC

Query time 0.00154

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "66.16"
    },
    "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": 63,
            "rows_produced_per_join": 63,
            "filtered": "100.00",
            "index_condition": "(`softwarepirmam_hewadelivard_cscart_4`.`cscart_product_feature_variants`.`variant_id` in (1560,3418,1559,4197,4606,4826,4790,4649,3825,3421,4430,3625,2862,4646,4632,4722,4794,4792,4204,1558,1600,4783,4758,4707,1702,4729,4726,4635,4716,4648,4532,4822,4614,4610,1748,3741,3641,3921,4622,4624,4626,3879,3626,4795,4829,4619,5191,4640,4566,1783,3858,2696,4608,4590,3967,3742,3656,2895,4252,2892,4262,3896,4793))",
            "cost_info": {
              "read_cost": "37.81",
              "eval_cost": "6.30",
              "prefix_cost": "44.11",
              "data_read_per_join": "71K"
            },
            "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": 63,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "15.75",
              "eval_cost": "6.30",
              "prefix_cost": "66.16",
              "data_read_per_join": "190K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}