Braums' Passive

Braum's passive is a really good idea, is kind of like an Annie/Leona crossover, however, what bothers me about his stun is the length, early game, that would be op as hell. (Correct me here I'm wrong, I've only seem a small amount of gameplay.) Just like Annie's stun early game, that is a really powerful passive, and maybe that's what it is for, being early game. Now, let me present my idea, and that is to make this stun time scale, just like you have done to Annie's stun. Again, I'm not very aware of if there actually is a scaling, but, that's just my idea.