If you have water at 45C it is surprising that you have any swordies left alive. Cool that darned water down. A massive water change will work if you have no other method to drop the temperature. Some ice cubes would be another way to do it.
Have you ever noticed how strange someone with a high fever acts? Fish are not immune to that effect.
I think the poster may be referring to the outdoor temperature and hopefully, not the tank temperature.
33 is still too high for a tropical tank.