Nikon NEFs (Raw) of the D4 are not very sharp und the colours are pale. The contrast is low. I must convert the RAWs into Tiffs so that I can work with them in LR. That isn ́a good way to work, I have often hundres of RAWs.
I ́m sorry for my bad English
Have you tried customizing the Default Develop Settings for the D4 in Lightroom to use settings that have stronger sharpening and positive Saturation or Vibrance? Or, what about using one of the vendor-matching camera profiles as your defaut for the D4—the "Camera Vivid" profile, for example, has fairly saturated colors.