Frankly, you're still failing to be anything more than vague. 50-60 what, for what? Is that in Fahrenheit or Celsius, GPU or CPU temperature?
I wouldn't start by telling us what is fine or not, when you have come to us asking for answers. Give us lots and lots of raw data, and let us give you our opinions, based on experience. Not trying to be rude, but it's like going to the doctor and telling him you know what's not wrong with you.
Have you looked at GPU and CPU usage percentages while your computer is cranking out low FPS numbers? Is one or the other, or even both, lower than usual? What are the numbers when the game appears to be running at full speed for you?