2007 Goodman split system using 16x25x1 filter. Customers mentioned noticing the example of : asking system to cool to 73 and it may pass that number and they still hear the system running. One explanation of the sound I found was the fan function at t-stat was set to on rather than auto, allowing the blower motor to continuously run. For the temp difference, the t-stat has a 1 degree leniency for its threshold, (if asking for 73, won’t shut off til it hit 72), combined with continuos fan to circulate and mild temperatures this year, the circulating air has the potential to further drop the temp a degree if it isn’t having to fight higher ambient temps. All mechanical inspections today I found no issue and system is operating within normal ranges.