Quick, energetic and active. (Cambridge Dictionary)
A brisk activity or action is done quickly and in an energetic way. (Collins Dictionary)
If trade or business is brisk, things are being sold very quickly and a lot of money is being made. (Collins Dictionary)
Keenly alert: Lively. (Merriam – Webster)
Pleasingly tangy. (Merriam – Webster)
Fresh, invigorating. (Merriam – Webster)
Businessman Walks Quickly Represents Fast Track And Brisk.
Brisk Reflexes: What You Should Know.