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 (667, 670, 1148) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00090

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "81.76"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "45.00"
      },
      "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": 45,
            "rows_produced_per_join": 45,
            "filtered": "100.00",
            "index_condition": "((`cscartdb`.`a`.`option_id` in (667,670,1148)) and (`cscartdb`.`a`.`status` = 'A'))",
            "cost_info": {
              "read_cost": "16.51",
              "eval_cost": "4.50",
              "prefix_cost": "21.01",
              "data_read_per_join": "2K"
            },
            "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": 45,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "11.25",
              "eval_cost": "4.50",
              "prefix_cost": "36.76",
              "data_read_per_join": "34K"
            },
            "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
SIlver	14710	667	1	0.000	A	A	A	A
Silver	14717	670	1	0.000	A	A	A	A
5	20215	1148	1	0.000	A	A	A	A
Bronze	14711	667	2	0.000	A	A	A	A
Bronze	14718	670	2	0.000	A	A	A	A
5	20216	1148	2	0.000	A	A	A	A
5	20217	1148	3	0.000	A	A	A	A
5	20218	1148	4	0.000	A	A	A	A
5.5	20219	1148	5	0.000	A	A	A	A
6	20220	1148	6	0.000	A	A	A	A
6.6	20221	1148	7	0.000	A	A	A	A
7	20222	1148	8	0.000	A	A	A	A
6.5	20223	1148	9	0.000	A	A	A	A
7	20224	1148	10	0.000	A	A	A	A
7.5	20225	1148	11	0.000	A	A	A	A
8	20226	1148	12	10.000	A	A	A	A
8.5	20227	1148	13	10.000	A	A	A	A
9	20228	1148	14	10.000	A	A	A	A
9.5	20229	1148	15	10.000	A	A	A	A
10	20230	1148	16	10.000	A	A	A	A
10.5	20231	1148	17	20.000	A	A	A	A
11	20232	1148	18	20.000	A	A	A	A
11.5	20233	1148	19	20.000	A	A	A	A
12	20234	1148	20	20.000	A	A	A	A
12.5	20235	1148	21	20.000	A	A	A	A
13	20236	1148	22	20.000	A	A	A	A
13.5	20237	1148	23	20.000	A	A	A	A
14	20238	1148	24	30.000	A	A	A	A
14.5	20239	1148	25	30.000	A	A	A	A
15	20240	1148	26	30.000	A	A	A	A
15.5	20241	1148	27	30.000	A	A	A	A
16	20242	1148	28	30.000	A	A	A	A
16.5	20243	1148	29	30.000	A	A	A	A
17	20244	1148	30	30.000	A	A	A	A