  We investigate the effect of next nearest-neighbour hopping on the zero
temperature Drude weight or superfluidity in mesoscopic one-dimensional systems
of (a) single particle with quasidisorder (Aubry-Andr\'e model) and (b)
hardcore bosons with nearest-neighbour interaction. We show that there is an
interaction-induced enhancement of the Drude weight when the next
nearest-neighbour hopping is frustrated for the many-body system. The observed
non-monotonic behaviour of the Drude weight occurs because the repulsive
interactions first suppress the frustration in the system, leading to a rise in
the Drude weight, whereas at much larger interaction strengths the charge
density wave fluctuations set in the insulator and the Drude weight drops. The
present work reveals a novel scenario in which a persistent flow enhancement is
plausible in the presence of kinetic frustration and repulsive interactions.
