MONTREAL — Lightspeed’s recent earnings call was a customary recitation of positive spin delivered by executives of the Montreal-based company. Revenues were up 24 per cent in its most recent quarter, losses were at their lowest in over two years and efficiencies wrung from corralling recent acquisitions—Lightspeed announced it was laying off 10 per cent of its workforce in January—have “strengthened our foundations for future growth,” as CEO Jean Paul Chauvet put it.