Hai cercato la traduzione di sans lenteur da Francese a Inglese

sans lenteur
without slowness

and no sans lenteur
and no without slowness

dans la célébration, on note qu’il procédait sans lenteur.
in celebrating mass he was not known to be too slow. nevertheless, exceptionally, he would slow down at the elevation where he could pass up to five minutes, his eyes fixed upon the host, as if in ecstasy.

chaque jour, don marchisio se prépare longuement à la célébration de la messe qu'il dit sans lenteur, mais dans un grand recueillement.
each day, don marchisio spent a long while in preparation for celebrating mass, which he said without slowness, but in a deep spirit of recollectedness.

a 11 heures 59 minutes, les 31 notes nécessaires se succèdent en plus ou moins 15 secondes, un temps sans lenteur ni précipitation pour un enchaînement aussi mélodieux que perceptible à l’oreille.
at 11:59, the 31 notes required ring out in about 15 seconds, a period that is neither too lengthy nor too rushed and creates a tune that is both melodiously and clearly audible.

il sera également fondamental de régler sans lenteurs bureaucratiques les problèmes considérables soulevés par les nouvelles procédures relatives aux camions sous scellés.
it is essential that the significant problems with the new procedures for the sealing of trucks be immediately resolved without bureaucratic foot-dragging.

il fallut demander une quantité surprenante de marchandises et de services variés aux autorités du camp, lesquelles "collaborèrent d'une façon admirable et sans lenteurs administratives".
an unexpected variety of goods and services had to be requested of the camp authorities, who "co-operated admirably, and without red tape".