Reasons for keeping my X100

Although I love my X100 with it's new lease of life with the latest firmware update, I still can not get what I call a "sharp" image out of it. My OMD-EM5 does it every time. Image straight monotone JPEG out of the camera, ISO200 f4 1/512 sec. Camera sharpness Standard. I do use a UV(c) fillter but is is a Hoya HMC.

This image should be "pin sharp" should it not? Focus was on the far side of the river.

Any ideas would be gratefully appreciated before I am tempted to upgrade to the X100s which are staring to appear on the market used.

Many thanks.