About how much time does it take to practice a set of Yang Style 85 Traditional Taijiquan?

When practicing traditional Yang Style Taijiquan, time and rhythm have always been a problem for many kung fu practitioners. Although this question is very simple, but because of the writings of Master Yang Chengfu's writings have "so practice frame the slower the better," the words, we have been very confused. Master Yang Chengfu said, "Therefore, the slower you practice, the better," the word "therefore" is the key point, there are prerequisites. Because at that time, many practitioners did not know much about Taijiquan, unlike nowadays, when mentioning Taijiquan, no matter those who know how to practice it or not, they all know that Taijiquan is slow. Therefore, this statement was made according to the actual situation at that time, only that it did not take into account the development and consequences. Moreover, many people are not aware of the fact that the writings of Grandmaster Yang Chengfu were written by others, because the Grandmaster himself was negligent in writing, and even his signature was written by others, which inevitably led to mistakes and regrets in his writings. The correct time for Yang Style Taijiquan is about 22 minutes. Taijiquan is slow, but never too slow, too slow will affect the breath and blood flow, affecting the movement of the continuous, resulting in sluggish boxing stagnation.