There are many factors which contribute to this, for example the number of sessions a student has per week, the ability of each student to grasp the fundamentals of Tajweed, how much individual practice the student puts in themselves.
What we prefer to focus on is that the student learns their recitation correctly which is more important than the speed at which a student completes the full recitation of the Quran.
Our courses are tailored to each students needs and hence they benefit from having one to one learning from a dedicated teacher with regular progress updates.