Yes, the pump works a little harder with the new vortex. The recommended flow for the new vortex system is 8 LPM (6 to sample cell + 2 to bypass). 7 LPM was recommended for the original system. Also, the sample cell “differential” pressure is slightly lower (~-6kPa_new versus ~-3kPa_original). It’s a balance of parameters to maintain good frequency response, low power, and low maintenance.
