Flight training duration vs best lessons frequency, pace and quality.

Need advice what is best for student pilot.
What is better, getting license fast, or to take your time, to enjoy
longer, to do it slower?
The situation.
Basic glider flight training on tow including 10 solo flights.
Flat terrain, no ridge, weather is no problem.
Student and instructor live near airfield.
There is no rush, time is no problem.

The questions
1. What is the best frequency of flying lessons, how many flights per
day, per week, per month?

4 flights per day?

4 flights per week?

How many flights would you recommend per day or per week and why?

2. Should full training including 10 solo flights be completed in 2
weeks, or 1, or 2, or 3 months, what is the best and the most enjoyable
for the student?

3. What is optimal training program on tow, minimum, average, maximum
number of dual flights before solo, what the release altitude should
be, what the duration of each flight should be etc?

4. Is there any program available for each flight-lesson for teaching
on tow from start to solo and beyond?

5. What is the best glider for teaching gliding on tow?

Andre