Sportily, which describes something done in a way that is energetic, active, or athletic, can be substituted for several different words with slightly different connotations. An alternative is "nimbly", which implies agility and quickness, while "athletically" is similar but more specific to exercise or sports. "Sprightly" connotes liveliness and youthfulness, while "dynamically" suggests force and power. One could also use "lithely" to describe an action that is graceful and effortless or "vigorously" to convey a sense of robustness and intensity. Ultimately, the best synonym for sportily depends on the specific context in which it is being used and the desired meaning.