I think this is an inherent problem in human interface design
Problem solved. Bombardier CSeries designed the FBW as an energy-based control system that mimics the basics of how pilots learn to fly. When trimmed out, the aircraft will attempt to maintain that speed despite changes in power. If the power is lower than needed, the aircraft will descent, and vice versa, but the speed will attempt to remain constant, naturally. Bombardier modified the C* (C-star) FBW design control system to be speed-stable, meaning that the pilot is kept in the loop to maintain a speed set by using the trim switches at the top of the sidestick: It's much more intuitive and flies much more like a conventional aircraft, says Dewar. Compared to the Airbus FBW, where you trim to an attitude and it holds it, here you trim to an airspeed.
Just watch the stick movements in video below:
CS300 Multicam Cockpit Landing