The 3 reasons you state is what has destroyed the principle of Voyeaurism.
Managers, pay & perform. Because that is all it is now, a porn performance for money which is being drained by managers. Eliminate managers and you would have an immediate increase in pay for the tennants which would perhaps encourage better performance as you put it.
However humans are not machines so to expect 24/7 sex is just unrealistic which is what so many subscribers seem to be wanting now.
An increase in subscriptions would perhaps sound the death knell for the whole project as so many are not prepared to pay what they charge now let alone increasing them.