Checking with a infrared temp gun is good advise!!Is it blowing coolant out the overflow?If not probably not overheating.
I went through this for two years on and off factory gauge off 30 degrees,cheapo 3 pod aftermarket gauge off 25 degrees with two gauges telling me i'm overheating i thought i was.
Gauges read 230 and 240 and infrared reads 185 at the thermostat housing.
Installed autometer mechanical gauge it reads 195 max in traffic and just changed the gauge because i changed ever thing else twice!!