Brisk phrases

Could you please tell me the meaning of "brisk" in this excerpt from The Great Gatsby? Does it mean "concise"?

A change had come over him and he spoke gravely, and with decision. As we walked across the moonlight gravel to the porch he disposed of the situation in a few brisk phrases.

“I’ll telephone for a taxi to take you home, and while you’re waiting you and Jordan better go in the kitchen and have them get you some supper—if you want any.” He opened the door. “Come in.”

Thank you.