the sooner the better
As soon as possible; right away. Please have compile a report of all our financials from the last two quarters, the sooner the better.
sooner the better
The sooner something [referred to] gets done, the better things will be. Bob: When do you need this? Mary: The sooner the better. Bob: Please get the oil changed in the station wagon. The sooner the better. Alice: I'll do it today.