how to make players to develop their attributes faster and how to edit continental competion, Remove europa league or conference league .
The ratio of growth, is handled by SI within the code and you cannot changed. It's like 10-12 CA points for each season and with players which have excellent Determination, Ambition, Professionalism, Top Coaches, Top Training Facilities and playing regulary. Players now reach (and if) their hidden PA around 26-27 y/o.
For the other topics you will need the Pre-Game Editor and not the Resource Archiver.