Describe the solution you'd like
the ability to set a minimum level for all default perks

Why is this feature needed
This allows perks to be unlocked at certain levels instead of always present but growing in strength. It allows perks to be more rewarding and adds to the leveling up experience.

Describe alternatives you've considered
An alternative would be to have another mod assign a perk-unique skill as soon as the player reaches a level in another skill. This is cumbersome, ugly, and requires an outside mod where it otherwise should not be needed.