I registered just to reply to this! Just remove the flow-limiter (restrictor?) from INSIDE the shower head. This is REALLY easy Just remove the showerhead, and if it is new from the last several years it may have a little "mystery gasket" just inside where you screw it on, perhaps sitting inside a white plastic strainer-like filter. Ours was orange with a tab on top of it (the upstream side) for easy grabbing, round in shape, little black rubber gasket to hold it in place.
Remove the orange mystery-plastic and your showerhead will now have a much more clean-feeling high pressure spray