Players who play for dancing will tend to play in their familiar way. Because the human body is the same. Irish dancing requires smaller faster steps, in English we leap. The Irish hornpipe is recognisably a hornpipe but the steps are still quite small cf ECeilidh where we step.

FWIW I have been told the "Sir Roger de Coverley" (aka Roger of Coverley) is the only dance/tune in ECeilidh that is a slipjig. Traditionally it is quite distinctive.