Over Efficient Cleaner

We recently employed a cleaner.  She certainly could clean but she was not a cleaner.  She was overly thorough and spent more than the allocated 2 hours to clean one bathroom.  The arrangement was for her to whizz through the house in 2 hours.  Unfortunately, we’ve had to let her go as all I had after every cleaning session, was a gleaming shower cubicle that cost me just under £40 to clean!!!!!