I have used Amsterdam twice this year as a transit airport to another european destination.
Not sure the taxi time from terminal to runway is any different to other large european airports, usually around 40 minutes especially on landing at Rome, never mind the huge queues for security, especially on arrival.
I need special assistance nowadays, but when I used to do the transit myself, lots of walking, but this seems the way at airports today.
One of the better signed posted airports internally in my experience, never got struggled like say at Frankfurt.