The phrase "a much speedier" is correct and usable in written English.
It can be used when comparing the speed of two or more things, indicating that one is significantly faster than the other.
Example: "The new software update provides a much speedier performance than the previous version."
Alternatives: "a significantly faster" or "a considerably quicker".
"In a perfect world, we'd see a much speedier transition to a genuinely free society.
Mr Bremer, egged on by the British, has since embarked on a much speedier course towards Iraqi-isation in virtually all spheres, including the army and police.
Workers from all the organisations can offer basic advice and a much speedier service because of access to colleagues and information.
Its executive director, John Sauven, said: "This signal is a welcome moment of clarity amidst the all-pervading Brexit uncertainty, but it could have come with a much speedier timetable.
According to Mr. Bush's advisers, the review of Mr. Cheney's credentials and background materials was conducted somewhat outside of the process that Mr. Cheney had established for the rest of the field, and it went forward at a much speedier pace.
Instagram has launched version 5.1 of its app on Google Play today, with a redesign that makes for a much speedier, resource-light experience.
Transplanting a cafe or restaurant to an airport often means adapting to a tiny retail space while offering much speedier service and a smaller menu than what the home base provides.
In my country we have developed a solution that is much speedier and more effective than legislation can ever be.
In such close quarters, mixing occurs not by stirring, but by diffusion, and is much speedier as a result.
The application includes an integrated listing of top trends, advanced search functions, and a streamlined interface that feels much speedier than its competitors.
PET is much speedier than a meticulous Ga-67 SPECT study and therefore more practical in situations where treatment decisions need to be made quickly.
