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 (388, 389, 390, 391) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00092

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "20.81"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "11.00"
      },
      "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": 11,
            "rows_produced_per_join": 11,
            "filtered": "100.00",
            "index_condition": "((`cscartdb`.`a`.`option_id` in (388,389,390,391)) and (`cscartdb`.`a`.`status` = 'A'))",
            "cost_info": {
              "read_cost": "4.86",
              "eval_cost": "1.10",
              "prefix_cost": "5.96",
              "data_read_per_join": "528"
            },
            "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": 11,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "2.75",
              "eval_cost": "1.10",
              "prefix_cost": "9.81",
              "data_read_per_join": "8K"
            },
            "used_columns": [
              "variant_id",
              "lang_code",
              "variant_name"
            ]
          }
        }
      ]
    }
  }
}

Result

variant_name	variant_id	option_id	position	modifier	modifier_type	weight_modifier_type	point_modifier_type	status
Cup Holder	11936	388	1	15.000	A	A	A	A
Level	11937	389	1	10.000	A	A	A	A
Sedona Red	11941	391	1	0.000	A	A	A	A
No Fractal Burn	12008	390	1	0.000	A	A	A	A
Aged Oak	11942	391	2	0.000	A	A	A	A
No Level	12010	389	2	0.000	A	A	A	A
Fractal Burning - Large	11940	390	3	150.000	A	A	A	A
Ebony	11943	391	3	0.000	A	A	A	A
No Cup Holder	12009	388	3	0.000	A	A	A	A
Honey	11944	391	4	0.000	A	A	A	A
Mahogany	11945	391	5	0.000	A	A	A	A
Classic Grey	11946	391	6	0.000	A	A	A	A
Dark Walnut	11947	391	7	0.000	A	A	A	A
Red Oak	11948	391	8	0.000	A	A	A	A
Golden Oak	11949	391	9	0.000	A	A	A	A
No Stain - Sanding Only	11950	391	10	0.000	A	A	A	A