brisk
adjective
uk/brɪsk/ usquick and full of energy, and only saying what is necessary:
In the office, he was brisk and businesslike.
used to describe a situation in which there is a lot of activity:
Oil prices added over 2% in brisk trading yesterday.
American manufacturing was doing brisk business last month.
briskly
adverb
The product has been selling briskly despite the recession.