Answer: speedier

AnswerCrossword Clue
SPEEDIERMore like Alka-Seltzer?
SPEEDIERMore prompt
SPEEDIERFaster
SPEEDIERAt a faster rate.
SPEEDIERLike a certain tortoise
SPEEDIERLess time-consuming
SPEEDIERMore swift
SPEEDIERMore rapid
SPEEDIERMore likely to finish first
SPEEDIERMore expeditious
SPEEDIERLike express mail vis-a-vis regular mail
speediercoming, given, or arrived at quickly or soon; prompt; not delayed
speediercharacterized by speed; rapid; swift; fast
speedierSPEEDY, swift (speedy)