From the rocket equation, the delta-v of a rocket is logarithmically related to the mass ratio of the vehicle, minimising the delta-v budget as far as possible is usually very important to avoid the necessity for infeasibly big and expensive rockets.
The delta-v of a rocket is logarithmically related to the mass ratio of the vehicle-v budget as far as possible is usually very important to avoid the necessity for infeasibly big and expensive rockets. This is from the rocket equation. The mass ratio of the vehicle is minimising the delta.