Looking 'under the hood', I 'think' there's a way to create a ram air intake.
If you remove the left hand (sitting on the bike) front front frame cover, this creates an open air gap between the frame and the airbox. The right hand frame cover can't be removed removed due to it's function in holding the regulator/rectifier onto the frame.
Next, you can either
1. attempt to turn-around the intake. The way the current snorkel lies, it faces backwards. By creating a gap in the frame on the left side to allow air in, flipping the intake forward might improve flow.
2. one step further would be to the above. But instead of flipping the intake around, fabing a larger ram-air intake snorkel to replace the stock air box lid.
3. Next would be removing/moving the coolant catch can. That way, you could actually do a true ram-air intake by fabing an larger intake to go from the air box to the edge of the frame where fresh the air actually enters.
Just theories, but maybe worth looking into.