Based on your comments, I would say you're experiencing what real helicopter pilots experience in modern tactical aircraft. It's an augmentation system built into helicopters to make them actually overcome the inherent unstable aerodynamics imposed by a rotor system... unfortunately, there is no way around those dynamics. What FMC's (Flight Management Computers) do in the way of assisting the pilot is not necessarily taking those dynamics mentioned from the flight, but allowing the aviator who knowing these dynamics exist, to apply less energy in compensating for these problems. The disadvantage you have unfortunately is that you are not able to experience the physiological manifestations of the machine and how it reacts to the atmosphere... ie. seat of the pants. You just need more time with exposure to the system. Initial aviators, including myself when I was one, is to have tired legs, arms, and white knuckles trying to hover. Now I can do it with just one finger, and have been able to do so for a while now.
The FMC, or FD as Black Shark has it, isn't really fighting you, but the environment. All the navigational components are providing imputs from the external enviromnet to the FMC, while your imputs are also being fed to the same computer. The aircraft discerns your imputs from the outside world, telling the helicopter if it is you making the helicopter move, or the outside worl, ie. in the form of a crosswind for example. To help the pilot relax, the aircraft attempts to compensate for these effects from the atmosphere, ultimately relieving the pilot from work load. It just takes practice. Again, I have to emphasize that you aren't able to "feel" the aircraft, so appropriately positioning the flight controls is being based off a two-dimensional picture you are viewing on your monitor. This will effect you tremendously in controlling or over controlling the airframe. It's just going to take practice dude. No way around it. However, fly the aircraft in a way that works for you. You aren't under any operational manual limitations or oversight agencie's goggles to determine whether you are operating safely or as desired!
This simulator is very realistic.... coming from an actual helicopter pilot.