Sometimes moving together is not the best option and speed must be sacrificed for security. This is fine as technical sections are allowed for in the guide book time. They take longer than the easy sections! The point is that time must be saved when possible by being well prepared, having a plan, getting up early, taking the right route, being fit & moving swiftly over easy ground, managing the rope etc. This list goes on. Becoming An Alpinist is no easy path!