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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 (577) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00087

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "11.90"
    },
    "ordering_operation": {
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "a",
            "access_type": "ref",
            "possible_keys": [
              "status",
              "option_id",
              "option_id_2"
            ],
            "key": "option_id",
            "used_key_parts": [
              "option_id",
              "status"
            ],
            "key_length": "6",
            "ref": [
              "const",
              "const"
            ],
            "rows_examined_per_scan": 17,
            "rows_produced_per_join": 17,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "4.25",
              "eval_cost": "1.70",
              "prefix_cost": "5.95",
              "data_read_per_join": "816"
            },
            "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": 17,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "4.25",
              "eval_cost": "1.70",
              "prefix_cost": "11.90",
              "data_read_per_join": "13K"
            },
            "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
10.5	13582	577	1	A	A	A	A
11	13583	577	2	A	A	A	A
11.5	13584	577	3	A	A	A	A
12	13585	577	4	A	A	A	A
12.5	13586	577	5	A	A	A	A
13	13587	577	6	A	A	A	A
13.5	13588	577	7	A	A	A	A
14	13589	577	8	A	A	A	A
14.5	13590	577	9	A	A	A	A
15	13591	577	10	A	A	A	A
16	13592	577	11	A	A	A	A
16.5	13593	577	12	A	A	A	A
17	13594	577	13	A	A	A	A
17.5	13595	577	14	A	A	A	A
18	13596	577	15	A	A	A	A
18.5	13597	577	16	A	A	A	A
19	13598	577	17	A	A	A	A
19.5	13599	577	18	A	A	A	A
20	13600	577	19	A	A	A	A
20.5	13601	577	20	A	A	A	A
21	13602	577	21	A	A	A	A
21.5	13603	577	22	A	A	A	A
22	13604	577	23	A	A	A	A