I think the pedals are set on the furthest fixing - which is still tight for me, is it possible to move them a little further back?
A steering wheel spacer will help as it gives more clearance for the top of your thighs so allows you more room to move your foot around.
You can (carefully!) try this with the quick release by half releasing the wheel.
The pedal spacing is fixed so as others have said - narrow shoes are the answer.
