SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    65070, 65008, 65044, 65052, 65123, 65065, 
    65060, 65000, 65056, 65525, 65655, 
    65656, 65658, 65810, 65820, 65806, 
    65800, 65817, 65659, 65657, 65789, 
    65895, 65937, 65888
  )

Query time 0.00083

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 24,
      "filtered": 100,
      "attached_condition": "cscart_products.product_id in (65070,65008,65044,65052,65123,65065,65060,65000,65056,65525,65655,65656,65658,65810,65820,65806,65800,65817,65659,65657,65789,65895,65937,65888)"
    }
  }
}

Result