As mentioned in another thread, flaperons will hinder aileron effectiveness when you need it most, during take-offs and landings. If you have a three position flap switch, consider that the first click will drop your ailerons a certain percentage or number of degrees. That will reduce how much your ailerons travel by that much.

Then the next step will further drop the ailerons to a point where they are almost non-effective.

I would simply forget the use of flaperons until you are totally familiar with your plane's handling and your ability to use the flaperons as designed. And, that you can remember that if you DO use them in flight, to remember to remove the input before landing so you have total control over the ailerons for roll corrections during landings.