How would you buff your character without overpowering it?

I was thinking, I love some characters design and I know that for hoyo is not worth buffing them directly, but dreaming is free, So I'm going first.

I would reduce Jing Yuan's LL charges from 10-8 and when they reach 8 charges, it attacks immediately after, so we don't have to wait a whole century or making ability points going to waste.

I mean, I don't know if sounds too op, but it would make Jing Yuan 100% more satisfying and useful for me.