Irrelevant. Still not quicker than handing over the exact money in fiat.
Assuming that you just so happen to have the exact amount, readily available in your hand, yes. More of than than not, it's more like: €3.85, ok *opens wallet* wait just let me count.. 2 euros, another one, 50 cent, 60, 70.. hmm do you have a nickel back? Hold on I may have another dime here. Or ehh wait, here, do you have change from €5? Sure, let's see, that makes 3.90, 4, ...etc
I've already scanned a dozen QR codes in that time.
There's also not thaty much you can buy there nor would I be able to buy much at all with it in Amsterdam so a few niche shops that accept it in a small area isn't that great.
Amsterdam (not to be confused with
Arnhem) doesn't have as many Bitcoin acceptants yet, although they're on their way.
But in fact, yes there is actually TONS of stuff you can get here with Bitcoin: pretty much all your daily expenses, restaurants, pubs, museum, bicycles, several car companies, cinema, hardware stores, hotels, hair dresser, post office, book stores, massage studios, and some people even pay their rent in Bitcoin here in Arnhem.
Seriously, you'd be surprised just how far general Bitcoin acceptance has taken off already.