Efficiently and Precisely

efficiently

With efficiency; in an efficient manner.
- usage: "he functions efficiently"
- synonyms: expeditiously

(adv.) With effect; effectively.

Webster's Revised Unabridged Dictionary

precisely

Indicating exactness or preciseness.
- usage: "he was doing precisely (or exactly) what she had told him to do"; "it was just as he said-the jewel was gone"; "it has just enough salt"
- synonyms: exactly, just
In a precise manner.
- usage: "she always expressed herself precisely"
- synonyms: incisively, exactly
Just as it should be.
- usage: "`Precisely, my lord,' he said"
- synonyms: exactly, on the nose, on the dot, on the button