The quickest fix I can think of, is to add these entries to the data.ini, just under the flight control section, and adjust them to suit your tastes.
[AIData]
TakeOffRotationAngle=15.0
MaxPitchCombat=22.5 <---------adjust here
MaxPitchForAltitude=15.0 <---------and here
Otherwise, the only other fix that comes to mind, is to get C5 to rewrite the FM, or at least to redo the drag/alpha table sections for all the lift surfaces, using 1-degree interpolation (instead of the default 5-degree values).
Come to think of it, Caeser, if you have the time, you can create a spreadsheet that will accomplish the same task, using the existing "coarse" values, and interpolating the single degree data points bewteen them.