Over the course of three movies, he does plenty of kung fu, but its Neo’s love for the world and for Trinity in particular that ultimately saves the day.

Source: https://www.digitaltrends.com/movies/best-sci-fi-heroes-ranked/

Smith’s movements were now also more creative, as if Smith was discovering how skillful he could now be after absorbing a fraction of Neo’s The One powers.

Source: https://screenrant.com/matrix-movies-agent-smith-fighting-style-changes-explained/