He delighted people with his charm and 'ease' of manner. [=his relaxed and easy manner]
The students might respond better if the teacher 'eased up on' them a little.
These features can be modified 'with the greatest of ease'. [=very easily]
(..) Keanu could do quieter scenes ... ... and the fighting scenes later. Action. Shit. He needed to look ill at ease in his clothes at work.. So he was disheveled and nothing quite fit him properly. The brown coat, the brown jacket. (..)2001 The Matrix Revisited