software.
All it is doing is overriding the built in cooling software and is not usually recommended.
Instead, install a copy of iStat menus.

This provides much more detail than the SMC software.

Second thing is to make sure that all the vents are clear on that iMac.

A can of compressed air will do that nicely. Make sure you do all of them, top and bottom.

44C is not overly hot and it depends on what portion of the iMac is at that temperature.

P