I did have a lot of motion blur while gaming on my P50. I already returned it. Hopefully it was just a defective TV, as others have e stated they haven't had the issue.
The ghosting was more apparent on light backgrounds. Especially white ones. Maybe some can test a game against white background and let me know.
The motion blur looked like a dimmer ghost image approximately 2/4 inch in the opposite side of the objects being rendered when the field of view was being panned. Forward movement did not produce the artifacts. It was most notable in The Elder Scrolls Online in Skyrim on my PS4.
I am hoping maybe it was just a defective display, because other than gaming the picture was absolutely outstanding. I attempted to remedy the situation by testing HDMI 1-5 and toggling game low latency, led lighting, and the motion controls.
I would really like for this display to work out for me. Picture quality is second.to none right now.