Chris
I an not familar with your Fuji, but may be this will help.
I have a Canon 5D in the settings there is a Picture Style which move into Customising the Picture Style where there is a section for Sharpness.
Sharpness can be altered from soft for portraits to hard more suitable for aeroplanes.
Sorry if my words dont fit the new language I,m new to the digital world, hope this helps.
Simon