There sure is, get the figure to what you feel is acceptable in the LCD then set that figure in Simplify3D specific to the “material” or hotend. Just a matter of selecting the hotend, then adjusting the extrusion multiplier for the hotend, then slicing as usual. Once done, make sure you set the LCDs extrusion multiplier back to zero.
I notice you’ve still got those nasty gradients on the bottom side of the wheel. You haven’t edited the model to make this more printable? What did you end up doing to get it to work? Smaller nozzle size?