what is ambient temperature? and iv'e been using this cooler for only 4 months now.Because of your ambient temperature and maybe because of old thermal paste between cooler and CPU. You can reapply fresh thermal paste if you want.
The temperature is not going to hurt or throttle your CPU, all safe for now. if it´s reaching 80°C, you can try using additional case fans or let the current fans spin faster
Dang i have no idea but the ambient temps were a bit lower maybe about 27Cambient temperature is the outside temperature
what was your room temperature 4 months ago?