Powder-based high-speed directed energy deposition using a laser beam (HS DED-LB) is a novel variation of directed energy deposition (DED-LB). By shifting the powder focus above the substrate, the added powder is melted prior to deposition, allowing processing speeds of up to 200 m/min. Modern HS DED-LB systems include 5-axis capabilities, allowing material to be applied to irregular geometries, making the process particularly suitable for remanufacturing. As a result, the process has great potential for the industry. Increased material and energy efficiency throughout the process chain is essential to improve process efficiency. By enabling coarser particle size distributions for HS DED-LB, both the economic efficiency can be increased and the reconditioning losses can be reduced. The aim of this study is to show the interaction between powder-gas flow, process parameters and the resulting weld track.