at this rate
Also, at that rate.
Progressing at this (or that) speed, as in At this rate we'll never finish in time. [Mid-1600s]
Under these circumstances, in that case. For example, At this rate they'll never settle their differences. [Late 1700s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.