Why can't my character do almost the same thing as this: http://www.youtube.com/watch?v=8Bh4FBFZVXk , with agility 10 and the perk quickdraw? Instead, my character draws the gun fast and then just stands there a few momnents before firing.. It would be so cool to be able to hip fire this fast from holster mode, ok, maybe not THAT fast but still faster than it is now. Who thinks like me, who thinks this is a stupis idea?

I've yet to take quick draw, but the perks + speed of effects like rapid reload can be bugged.
Try holstering the gun and then using a hot key to equip and unequip the weapon once or twice it may clear the problem.

But drawing like the vid would be cool in game.

No no, the drawing works 100% I know it can bug, at those times it seems like I have 0 agility or what not. But the problem is, that even if I'm able to draw the gun super fast, I'm not able to shoot with it, even when I press R1 (attack button) rapidly. The revolver gets drawn, but then my char just stands there for a few moments before shooting, but all the time when he stands there, I'm pressing the attack button and he has the gun in his hand.. Not fun..

I can only dream about a working quickdraw.. Lucky holstered and then.. BANG!

That would make a cowboy build a heck of a lot'a fun, shame it does not work right.