It's said that he spend hundred of hours to manipulate at subatomic level that cristal.. maybe for this vader don't use in battle subatomic manipulation.
It's all ok, but subatomic manipulation bypass durability, this mean that rebel or jadi or pirates if you have the power of blowing up thing, you just have to blow up thing..
I still don't think that vader has speed of light I don't approve the way it's dimostrated, because i just can easy calculate malek speed doing distance/time instead than that calculation based on a game animation aproximation..
But it's ok he has light reaction speed, and telepathy isn't control manipulation, telepathy is just the ability to read other mind and comunicate with others.
However i counted all this in my probabilistic calculations and stills i think it's good 3/5 for saitama. If you want a SURE calculation I can't do that, because we are supposing much about this two characters. If I go from just vader has shown in film, or from official skills, saitama wins, if I go from supposing that vader can blow up people than vader wins, if i go that vader has super mind hax, than he win, if i go that saitama has endurance againist will power control, than he win.
The only sure think is that saitama can kill him with out all this, while vader can't.. this is way i think saitama has that 3/5.