Yes, as SM says - it takes time but not because of hardcore riding, but because of the twisties which make one keep the speed down. It's no Erzberg or Roof of Africa
One more comment - the situation may have changed, or I may not remember it exactly, but probably the scariest bit for the newbies, may be right after you turn off from tar on dirt to A3. You go through the village and then across deep canyon, where the gradient is pretty steep. But the road is usually quite good, just keep your momentum through the twisties and you will be fine. As I said, buses, taxis and such use that road normally.