Sandbox

SELECT 
  b.variant_name, 
  a.* 
FROM 
  cscart_product_option_variants AS a 
  LEFT JOIN cscart_product_option_variants_descriptions AS b ON b.variant_id = a.variant_id 
  AND b.lang_code = 'en' 
WHERE 
  1 
  AND a.option_id IN (451, 454, 455) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00106

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "34.96"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "19.00"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "a",
            "access_type": "range",
            "possible_keys": [
              "status",
              "option_id",
              "option_id_2"
            ],
            "key": "option_id",
            "used_key_parts": [
              "option_id",
              "status"
            ],
            "key_length": "6",
            "rows_examined_per_scan": 19,
            "rows_produced_per_join": 19,
            "filtered": "100.00",
            "index_condition": "((`cscartdb`.`a`.`option_id` in (451,454,455)) and (`cscartdb`.`a`.`status` = 'A'))",
            "cost_info": {
              "read_cost": "7.41",
              "eval_cost": "1.90",
              "prefix_cost": "9.31",
              "data_read_per_join": "912"
            },
            "used_columns": [
              "variant_id",
              "option_id",
              "position",
              "modifier",
              "modifier_type",
              "weight_modifier",
              "weight_modifier_type",
              "point_modifier",
              "point_modifier_type",
              "status",
              "note_required"
            ]
          }
        },
        {
          "table": {
            "table_name": "b",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "cscartdb.a.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 19,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "4.75",
              "eval_cost": "1.90",
              "prefix_cost": "15.96",
              "data_read_per_join": "14K"
            },
            "used_columns": [
              "variant_id",
              "lang_code",
              "variant_name"
            ]
          }
        }
      ]
    }
  }
}

Result

variant_name	variant_id	option_id	position	modifier_type	weight_modifier_type	point_modifier_type	status
32A	12548	451	1	A	A	A	A
XS	12585	454	1	A	A	A	A
Standard	12592	455	1	A	A	A	A
32B	12549	451	2	A	A	A	A
S	12586	454	2	A	A	A	A
Crotchless	12593	455	2	A	A	A	A
32C	12550	451	3	A	A	A	A
M	12587	454	3	A	A	A	A
32D	12551	451	4	A	A	A	A
L	12588	454	4	A	A	A	A
34A	12552	451	5	A	A	A	A
XL	12589	454	5	A	A	A	A
34B	12553	451	6	A	A	A	A
2XL	12590	454	6	A	A	A	A
34C	12554	451	7	A	A	A	A
3XL	12591	454	7	A	A	A	A
34D	12555	451	8	A	A	A	A
36A	12556	451	9	A	A	A	A
36B	12557	451	10	A	A	A	A
36C	12558	451	11	A	A	A	A
36D	12559	451	12	A	A	A	A
38A	12560	451	13	A	A	A	A
38B	12561	451	14	A	A	A	A
38C	12562	451	15	A	A	A	A