that is a huge amount and even with a pool it should not be that high.
are the split units set at a higher temp when you are not in that particular room?
they should be.
or
the units should be off windows opened and let the air flow thru.
the pool pump should be on a timer and if the pool does not get huge loads of users, it can operate 2 hrs on, 2 hrs off all day/night.