Better pacing? You mean because 5e lets a long rest re-set just about everything very simply, rather than resting so many hours to memorize such level spells, then 15 or 10 minutes/spell level to actually memorize them - or, alternately, if none of you are casters, up to 6 weeks to get all your hps back?... 5e is vaguely balanced around this semi-mythical 6-8 encounter / 2-3 short-rest 'day' (24 hr period in which you are allowed one long rest). Were it not for the short rest mechanic, that would just be a simplification of AD&D's complicated system of memorization and mostly-superfluous coverage of natural healing too slow to matter, that mostly just (IMyouthfulX) boiled down to ' we're outta spells & low on hps, - we go back to town and rest.'
I can see the dissatisfaction with the former, but not so much the appeal of the latter as a 'better pacing' alternative.