CoastalMaineac, if the room stays at a comfy temperature after you reduce the setting on the unit, that reduced setting will get the room comfortable just as fast as the higher setting.
I had window Air Conditioners in my apartment after college.
I quickly learned what number on the dial cooled the room without making it too cold.
Basic trial and error. I typically used the same setting all summer. Occasionally a very,very hot day required a cooler setting. That’s because more hot air was coming in from outside.