This sounds perfectly normal with many setups. Would need a lot more information before knowing if there is a problem. The pc spec, the games, the FPS you are getting at what resolution are things you should list.
Need more information, what CPU and Cooler do you have? Did you building this computer yourself or is a prebuilt? Have you tried to reseat the cooler with fresh thermal paste? etc.
This sounds perfectly normal with many setups. Would need a lot more information before knowing if there is a problem. The pc spec, the games, the FPS you are getting at what resolution are things you should list.