That's correct. When someone has you under focus and you want to draw a gun literally while they are looking at you, there are two things you have to do: slow down their reaction time and split their attention.
Slowing down reaction time is best accommodated with language as it applies friction to motor processes.
"DUUUDEI'llgiveyouwhateveryouwantjustdon'tshootmeI 'vegotkidsPLEEEEASE!!!"
Noise. Keep it up. His mind is trying to make sense of what you're saying. The transition out of him listening to getting a shot off is upping now by quarter seconds.
Splitting his attention.
"Gimme that money homie"
"Bro I got a wallet, a Rolex and cash, which one first? Left hand or right hand?"
Make him think of multiple things at once. Force decisions on him.
Finally patterning him with benign motion works well if you can set it up.
I take off my watch and give it to him.
I steadily withdraw my key fob and give it to him
I look absent minded and scared and mumble "Oh yeah" as I reach into my back pocket, retrieve my wallet and give it to him.
Finally I say "Oh yeah my iPhone" as I reach into my pocket steadily, retrieve my J frame and give him a face full of wadcutters.
It takes longer for me to write it than it does for me to do it.
One more thing I do is have an active moving fence/hand position that incorporates elements of deliberate misdirection. You see good sleight of hand guys doing this and if you watch video from Apollo Robbins on Youtube you can see the best guy in the world at this literally take your watch off your wrist while he's talking to you.
You can't be disrespectful when you do this and the objective is to look compliant and oafish. You can't irritate him either. Emotional intelligence, verbal agility, and social literacy are the key factors in this being successful, not draw speed.
It's a dope deal. Because buying dope is about selling yourself.
There's no Dot-Torture, 5x5, or any live fire training analog for acquiring this skill.