Motor running to hot, not sure what to make of it

[Ola]

As an update, i bought myself a 1515 2200kv to try out in the Erbe, and after 25min of bashing, alot of speed runs on asphalt, and some running in heavy deep snow, the RX8 is 115f (showing coolish on the led`s) and the 1515 motor about 140f..

This was on 5s, and 45mph gearing, and higher outside temps than before (45-50f).

So the conclusion must be that my T8 2000kv is either worn out, has a problem, or just to small for the truck/driving style.