All Dutch courses of Suitcase talen are fast-paced because they are for highly educated people. When you start from zero, it takes 20 weeks to speak at level A2. It's good to know that the Delft method A2 level is higher than the Civic Integration Exam until January 2024.
For the Civic Integration Exam, 3 Modules plus the short Exam training are enough. However, if you want to continue to level B1, you must do Module 4 as well.
After that, it takes another 20 weeks to reach level B1. This B1 level is again higher than that of traditional courses. The explanation is that with the Delft method, you speak more. B1 level serves you well in Dutch social life.
Read more about the levels in Language Levels CEFR