135 dpi at 7/8 pt makes this 13/15 ppem, this appears to be rendered with hinting enabled, so I can see the potential for tweaking it. Perhaps in the hinting for the node at the bottom-left of the £ would do with pushing out a bit, so that the rasterised shape has less of a curved/'C' appearance at smaller sizes; eg. more akin to the Hebrew bet ('ב') in reflection and a more definite corner.
maco: to confirm, please can you retake the screenshot with the magic '' character pasted in after each of the pound signs. This will confirm the hinting and ppems in use.
135 dpi at 7/8 pt makes this 13/15 ppem, this appears to be rendered with hinting enabled, so I can see the potential for tweaking it. Perhaps in the hinting for the node at the bottom-left of the £ would do with pushing out a bit, so that the rasterised shape has less of a curved/'C' appearance at smaller sizes; eg. more akin to the Hebrew bet ('ב') in reflection and a more definite corner.
maco: to confirm, please can you retake the screenshot with the magic '' character pasted in after each of the pound signs. This will confirm the hinting and ppems in use.