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SELECT 
  a.variant_id, 
  a.option_id, 
  a.position, 
  a.modifier, 
  a.modifier_type, 
  a.weight_modifier, 
  a.weight_modifier_type, 
  a.point_modifier, 
  a.point_modifier_type, 
  b.variant_name, 
  IF(
    shared_option_variants.variant_id IS NOT NULL, 
    shared_option_variants.modifier, 
    a.modifier
  ) as modifier, 
  IF(
    shared_option_variants.variant_id IS NOT NULL, 
    shared_option_variants.modifier_type, 
    a.modifier_type
  ) as modifier_type 
FROM 
  cscart_product_option_variants as a 
  LEFT JOIN cscart_product_option_variants_descriptions as b ON a.variant_id = b.variant_id 
  AND b.lang_code = 'ja' 
  LEFT JOIN cscart_ult_product_option_variants shared_option_variants ON shared_option_variants.variant_id = a.variant_id 
  AND shared_option_variants.company_id = 1 
WHERE 
  a.option_id IN (
    1484, 1535, 1586, 1494, 1545, 1596, 1631, 
    1652, 1673, 1632, 1653, 1674, 1698, 
    1729, 1760, 1713, 1744, 1775, 1520, 
    1571, 1622, 936, 970, 1004, 3885, 3906, 
    3927
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00319

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "120.61"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "36.00"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "shared_option_variants",
            "access_type": "system",
            "possible_keys": [
              "PRIMARY",
              "company_id"
            ],
            "rows_examined_per_scan": 0,
            "rows_produced_per_join": 1,
            "filtered": "0.00",
            "const_row_not_found": true,
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.20",
              "prefix_cost": "0.00",
              "data_read_per_join": "24"
            },
            "used_columns": [
              "variant_id",
              "company_id",
              "modifier",
              "modifier_type"
            ]
          }
        },
        {
          "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": 36,
            "rows_produced_per_join": 36,
            "filtered": "100.00",
            "index_condition": "((`eshopuga_upgr_4122`.`a`.`option_id` in (1484,1535,1586,1494,1545,1596,1631,1652,1673,1632,1653,1674,1698,1729,1760,1713,1744,1775,1520,1571,1622,936,970,1004,3885,3906,3927)) and (`eshopuga_upgr_4122`.`a`.`status` = 'A'))",
            "cost_info": {
              "read_cost": "70.21",
              "eval_cost": "7.20",
              "prefix_cost": "77.41",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "variant_id",
              "option_id",
              "position",
              "modifier",
              "modifier_type",
              "weight_modifier",
              "weight_modifier_type",
              "point_modifier",
              "point_modifier_type",
              "status"
            ]
          }
        },
        {
          "table": {
            "table_name": "b",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "eshopuga_upgr_4122.a.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 36,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "7.20",
              "prefix_cost": "84.61",
              "data_read_per_join": "27K"
            },
            "used_columns": [
              "variant_id",
              "lang_code",
              "variant_name"
            ]
          }
        }
      ]
    }
  }
}

Result

variant_id	option_id	position	modifier	modifier_type	weight_modifier_type	point_modifier_type
1280	970	0	0.000	A	A	A
1616	1535	0	0.000	A	A	A
1636	1545	0	0.000	A	A	A
1688	1571	0	0.000	A	A	A
1706	1652	0	0.000	A	A	A
1708	1653	0	0.000	A	A	A
1756	1729	0	0.000	A	A	A
1786	1744	0	0.000	A	A	A
3259	3906	0	0.000	A	A	A
1279	970	1	2.000	A	A	A
1615	1535	1	2.000	A	A	A
1635	1545	1	2.000	A	A	A
1687	1571	1	2.000	A	A	A
1705	1652	1	2.000	A	A	A
1707	1653	1	2.000	A	A	A
1755	1729	1	2.000	A	A	A
1785	1744	1	2.000	A	A	A
3258	3906	1	2.000	A	A	A