Progress

The gifted student needs to practice in order to remember what they are learning.
The less able student should really train harder, because they are struggling and need to put in the practice.

How much you train is up to you, not us.

In this way, the syllabus is self-differentiating.
Students are welcome to progress at whatever pace best suits their level of commitment, and competence.
You only get out of taijiquan what you put into it.