Manipulation of particles and cells in viscoelastic fluids has received substantial interest because this phenomenon provides high-quality focusing. Here we present an enhanced particle focusing and separation in spiral channels, at a ten-fold increase of Reynolds number as compared to current state of the art elasto-inertial microfluidics and report stable particle focusing in spiral low aspect ratio channels at flow rates two magnitudes higher than that previously reported at a high throughput of 2 mL/min is demonstrated with an separation efficiency of 99% for the 15-micron and 91% for the 10-micron particles is demonstrated.