Romain
With the Hasselblad 3FR files, for them to look good "straight out of the camera" you will need to use Phocus as your RAW converter. Otherwise, as you say, they will look flat, with poor colour and be lacking in punch.
You can use ACR, Lightroom, Aperture or whatever, but then you will need to create a basic camera profile which emulates the job the Phocus does when it converts the 3FR fies to FFF.
If you are already using Phocus, then I am not sure what to suggest.
John