I still suggest cleat shims. There should be written articles on why they work. In your case the, the thick side will be on the inside of the right cleat, just opposite of what you might think. My left foot tilts down on the inside, causing my speedplay cleat wire to rub on the pedal spindle. One shim with the thick side on the outside of the cleat cures that problem.
https://blog.bikefit.com/bicycle-cle...compatability/