Compilation time of Quartus Prime Pro

What device are you targetting and how large is the design? Did you enable the option in the Tools settings to use all cores? I think Quartus can only use up to only a certain number, but I don't recall what that is.

If the design is large and you're using a larger device (like Stratix 10 or Agilex) and if you have difficulty to meet timing requirements, you should certainly expect longer compilations.