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 = 'nl' 
  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 (
    1392, 1421, 1450, 1498, 1549, 1600, 1694, 
    1725, 1756, 2710, 2732, 2754, 2714, 
    2736, 2758, 1711, 1742, 1773, 3703, 
    3744, 3785, 1789, 1805, 1821, 1630, 
    1651, 1672
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00120

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 (1392,1421,1450,1498,1549,1600,1694,1725,1756,2710,2732,2754,2714,2736,2758,1711,1742,1773,3703,3744,3785,1789,1805,1821,1630,1651,1672)) 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 weight_modifier_type point_modifier point_modifier_type variant_name
1548 1421 0 0.000 A 0.000 A 0.000 A
1644 1549 0 0.000 A 0.000 A 0.000 A
1704 1651 0 0.000 A 0.000 A 0.000 A
1748 1725 0 0.000 A 0.000 A 0.000 A
1782 1742 0 0.000 A 0.000 A 0.000 A
1814 1805 0 0.000 A 0.000 A 0.000 A
2432 2732 0 0.000 A 0.000 A 0.000 A
2440 2736 0 0.000 A 0.000 A 0.000 A
3156 3744 0 0.000 A 0.000 A 0.000 A
1547 1421 1 2.000 A 0.000 A 0.000 A
1643 1549 1 2.000 A 0.000 A 0.000 A
1703 1651 1 2.000 A 0.000 A 0.000 A
1747 1725 1 2.000 A 0.000 A 0.000 A
1781 1742 1 2.000 A 0.000 A 0.000 A
1813 1805 1 2.000 A 0.000 A 0.000 A
2431 2732 1 2.000 A 0.000 A 0.000 A
2439 2736 1 2.000 A 0.000 A 0.000 A
3155 3744 1 2.000 A 0.000 A 0.000 A