I think of a gossip when Master Lv Hui passed on the Shurangama Sutra. I saw that I could recite it before I became a monk in the Dojo, but I felt that decent men could lose to women, and I worked hard. It took 18 hours (sorry, I can't remember, it seems to be this time). Ask the teacher privately and answer for 2 years. Therefore, the personal roots are different in their efforts, and the time is naturally uncertain.
I am glad to be able to recite the whole mantra; Without energy, you can recite shurangama mantra's mantras, which is much easier.