Fuji S5 preview jaggies?

I use a 1900x1200 screen and open C1 to full size. When I view S5 images at "fit" setting they seem to have significant "jaggies". That is edges look very rough like a low res image up-ressed (stair step stuff). If I view at 50% it's still there. If I view at 67% to 100% it looks nice and smooth. I do not see the same issue with my D80 shots.

From what I can see this has been a problem for some people going back at least until February on a number of cameras.

Is there a "technique" I can use to improve this? If I shrink the window instead of going full size the jaggies are less annoying, but I'd rather have the space.

It's not absolutely horrible, but it makes the photos (program?) look a bit amateurish and is off-putting.

Any planned fix?

Thanks.