The allocation of talent points is essential to achieve optimum support for building, investment and training speed. You should only invest one talent point at a time at the beginning so as not to use up points unnecessarily. Initially, new improvement strands can be opened from 2 talent points, later from 5 points. The aim should be to unlock and maximize the speed buttons quickly. If you want to reset the aptitude to optimize the speed you need aptitude resets, which you can get in the clan store for 90k clan coins.