YES, ease just about everything in light air. Reducing pre-bend in the mast
allows the center of the luff come aft slightly and thus a deeper Chord in the main.
Easing the foot and Cunningham will also assist. Also, when sailing to windward, go for more speed and a little less height.
In almost calm conditions flat sails
are better. But, as cruising sailors tend to motor
in those conditions, this is more of a racing
As someone else mentioned, heeling the boat to leeward a few degrees will assist as will keeping weights forward and lifting the transom slightly.