Nice placement for the capture!
With regards the motion blur, that does seem like it's excessive considering the shutter speed. Were you on electronic shutter by any chance? Then the individual pixels would be at 1/400 but the whole frame is closer to 1/60.
Hi, I am new to the Fuji and I am intrigued by your electronic v mechanical shutter and pixels being individually at 1/400 yet the whole frame is closer to 1/60th.. I am keen to learn more and would appreciate an explanation of what you mean.. I scratch my head a bit with regards mechanical v electronic shutter and the pros and cons of each.