Simple age isn't a reason for a pump to overheat. One thing to easily check is cooling. There is a fan that keeps air circulating to cool the field windings and since this is located outside it is possible critters got inside and made a home blocking some of the air passages. When it's running see if there is good airflow. That tells you it isn't totally blocked. If you have compressed air try pulling the back cover, typically where the wires go in, and blow out any crud you may find.
Hope this helps.
Al
Edit: BTW...my Hayward superpump was installed in 97 and is still going strong. Only thing I have to replace this year is one O-ring gasket. It's also located in a poolhouse out of the sun and weather.