He's not going to heal his body by turning into a freaking grinder. That' going to make It worse. The whole point of hitting harder and going for winners earlier is so you can save your body
No one is asking to become a grinder, yet he can't serve and volley in this era either. Look what he did today - tried to out-hit Robredo. I think he could have a played a little smarter - bring in Robredo, angles etc.