fluency

The quality of smoothness of flow.

She has fluency, nobility, / Elegance and symmetry, / Stability, fluidity, / Like poetry in motion.

The quality of being fluent in a language; a person's command of a particular language.

The quality of consistently applying skill correctly in the manner of one well-practiced at it, requiring little deliberate thought to perform without mistakes

While Gunners boss Arsene Wenger had warned his players against letting the pre-match festivities distract them from the task at hand, they clearly struggled for fluency early on.