expression, i-adjective
quick to understand; getting straight to the point; no need to explain further
Used when someone grasps the situation immediately or when a matter is resolved quickly without lengthy discussion. Often said with appreciation or relief.
彼は話が早いから、説明が楽だ。
He's quick on the uptake, so explaining things is easy.
話が早くて助かったよ
That was settled quickly—thanks, that helped a lot.