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 (
    1322, 1313, 1323, 1226, 1548, 1550, 1249, 
    627, 628, 629, 1559, 1580, 1434, 1162, 
    1566
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00297

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "read_sorted_file": {
          "filesort": {
            "sort_key": "a.position, a.variant_id",
            "table": {
              "table_name": "a",
              "access_type": "range",
              "possible_keys": ["status", "option_id", "option_id_2"],
              "key": "option_id",
              "key_length": "6",
              "used_key_parts": ["option_id", "status"],
              "rows": 52,
              "filtered": 100,
              "index_condition": "a.option_id in (1322,1313,1323,1226,1548,1550,1249,627,628,629,1559,1580,1434,1162,1566) and a.`status` = 'A'"
            }
          }
        }
      },
      {
        "table": {
          "table_name": "b",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["variant_id", "lang_code"],
          "ref": ["dev_db.a.variant_id", "const"],
          "rows": 1,
          "filtered": 100,
          "attached_condition": "trigcond(b.lang_code = 'en')"
        }
      }
    ]
  }
}

Result

variant_name	variant_id	option_id	position	modifier	modifier_type	weight_modifier_type	point_modifier_type	status
Mint	1076	627	0	0.000	A	A	A	A
Ginger	1077	627	0	0.000	A	A	A	A
Pomelo	1078	627	0	0.000	A	A	A	A
Lemongrass	1079	627	0	0.000	A	A	A	A
Litsea Cubeba	1080	627	0	0.000	A	A	A	A
Orange	1081	627	0	0.000	A	A	A	A
Elsholtzia Blanda Benth	1082	627	0	0.000	A	A	A	A
Cinnamon	1083	627	0	0.000	A	A	A	A
Mint	1084	628	0	0.000	A	A	A	A
Ginger	1085	628	0	0.000	A	A	A	A
Pomelo	1086	628	0	0.000	A	A	A	A
Lemongrass	1087	628	0	0.000	A	A	A	A
Litsea Cubeba	1088	628	0	0.000	A	A	A	A
Orange	1089	628	0	0.000	A	A	A	A
Elsholtzia Blanda Benth	1090	628	0	0.000	A	A	A	A
Cinnamon	1091	628	0	0.000	A	A	A	A
Mint	1092	629	0	0.000	A	A	A	A
Ginger	1093	629	0	0.000	A	A	A	A
Pomelo	1094	629	0	0.000	A	A	A	A
Lemongrass	1095	629	0	0.000	A	A	A	A
Litsea Cubeba	1096	629	0	0.000	A	A	A	A
Orange	1097	629	0	0.000	A	A	A	A
Elsholtzia Blanda Benth	1098	629	0	0.000	A	A	A	A
Cinnamon	1099	629	0	0.000	A	A	A	A
	2828	1162	0	0.000	A	A	A	A
	3183	1226	0	0.000	A	A	A	A
	3821	1434	0	0.000	A	A	A	A
	4032	1548	0	0.000	A	A	A	A
	4036	1550	0	0.000	A	A	A	A
	4052	1559	0	0.000	A	A	A	A
	4066	1566	0	0.000	A	A	A	A
Dry flower craft paper	4105	1580	0	49000.000	A	A	A	A
Fabric tag craft paper	4106	1580	0	79000.000	A	A	A	A
	2827	1162	1	50000.000	A	A	A	A
	3182	1226	1	0.000	A	A	A	A
Round silver charm with white letters	3233	1249	1	200000.000	A	A	A	A
Gift wrapping (FREE)	3521	1313	1	0.000	A	A	A	A
Merry Christmas	3541	1322	1	0.000	A	A	A	A
Engraving name or message (FREE)	3545	1323	1	0.000	A	A	A	A
	3820	1434	1	0.000	A	A	A	A
	4031	1548	1	0.000	A	A	A	A
	4035	1550	1	0.000	A	A	A	A
	4051	1559	1	0.000	A	A	A	A
	4065	1566	1	0.000	A	A	A	A
White Buddha silver charm	3234	1249	2	400000.000	A	A	A	A
Winter Kiss	3542	1322	2	0.000	A	A	A	A
Silver Buddha Gold Charm	3235	1249	3	400000.000	A	A	A	A
Christmas tree	3543	1322	3	0.000	A	A	A	A
Blue red round silver charm	3236	1249	4	200000.000	A	A	A	A
A Hug	3544	1322	4	0.000	A	A	A	A
Hand silver charm	3237	1249	5	200000.000	A	A	A	A
No add-on charm	3238	1249	6	0.000	A	A	A	A