Animation Event not firing or skip problem (When Fast Animation)

Hello

I have used Animation Event when control game charactor. Move, Attack, Back ETC.

Could you see this screenshot. Animation Events are in top.

Sometime one of them is not fired or skiped, When game speed up (Time Scale up or Smart Phone got a slow)

Sometime animation event not firing...

Is it impossiple every event firing in animation surely?? without different ways? !