FF - your CFI will be unlikely to query your judgement. Remember, for the NPPL, if students are capable of achieving the result in the time suggested, then fine - they can. But if they can't, then they should not pass forward to the next lesson until they've grasped the essentials of the previous exercise.
The JAR-FCL syllabus I've produced is also a fairly optimistic suggestion, when I manage to find a day with only 25 hours in it, I'll be producing a similar syllabus for the NPPL. But core skills will not be sacrificed - there'll be a few less hours of navigation and no radio nav, otherwise there'll be little change.
..and I actually helped formulate AOPA's syllabus as a member of the NPPLSC having previously been a sceptic!