Well, that's the thing though. We will never know. There is also a possibility that how his approach is to a competition (relaxed or intense), his skating order etc actually play very little role and it is just that he has his best skates and peak around December, period. It is still depending on the free, but it is not as if he has skated better SP at 4CC in 2013 when he is more "intense" and "stressed" of being the newly crowned Japanese Champion + skating at home. He rarely skated at this time of the year and from his history he rarely skated really well at this period.
If he manages to overcome it, then good for him. But if it doesn't work, then maybe that's just the way things are. He seems to be aware of this and accept that he skates his best mid season, but still trying to work on his 2nd half season competitions by saying he is trying to increase his average performance, which I translate as trying not to implode and unravel the rest of his performances when he makes a mistake. We shall see how the result of his work on that department would be