SELECT 
  o.option_id as id, 
  i.option_name as name, 
  i.description, 
  i.comment, 
  o.status, 
  o.position, 
  o.alt_name, 
  o.design_file_attachment_id, 
  o.sku_column, 
  o.is_master_option, 
  o.base_variant_id, 
  o.variant_style, 
  o.variant_block_size, 
  o.variant_text_size, 
  o.variant_text_location, 
  o.variant_vertical_spacing, 
  o.visibility, 
  (
    select 
      1
  ) as is_global 
FROM 
  cscart_product_global_option_links as g 
  INNER JOIN cscart_product_options as o 
  INNER JOIN cscart_product_options_descriptions as i 
  INNER JOIN cscart_products as p ON g.option_id = o.option_id 
  AND g.product_id = p.product_id 
  AND g.option_id = i.option_id 
WHERE 
  g.product_id = 64468 
ORDER BY 
  name ASC

Query time 0.00122

JSON explain

{
  "query_block": {
    "select_id": 1,
    "filesort": {
      "sort_key": "i.option_name",
      "temporary_table": {
        "table": {
          "table_name": "p",
          "access_type": "const",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "ref": ["const"],
          "rows": 1,
          "filtered": 100,
          "using_index": true
        },
        "table": {
          "table_name": "g",
          "access_type": "ref",
          "possible_keys": ["PRIMARY", "product_id"],
          "key": "product_id",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "ref": ["const"],
          "rows": 8,
          "filtered": 100,
          "using_index": true
        },
        "table": {
          "table_name": "o",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["option_id"],
          "ref": ["cscart_migrate.g.option_id"],
          "rows": 1,
          "filtered": 100
        },
        "table": {
          "table_name": "i",
          "access_type": "ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["option_id"],
          "ref": ["cscart_migrate.g.option_id"],
          "rows": 1,
          "filtered": 100
        }
      }
    }
  }
}

Result