You mentioned Johnny O Leary. In the Johnny O'Leary tune book, in which Terry Moylan transcribed O'Leary's entire repertoire, he gives the tempi O'Leary played each tune at.

Moylan adopts standard convention, regarding the kind of metronome settings you gave at referring to tempi. Accordingly he says O'Leary plays jigs, polkas and slides faster than he plays reels.