koobas.hobune.stream
Ghost appear when Object move fast
as the picture i upload, when i use screenCapture tool it looks normal,but if i use camera on my phone there are a few ghost appear,Does it a normal phenomenon？ Can I use or make a set to avoid this？ 
The problem is your monitor. Probably monitor's response time is 8ms or more.
It might be an issue with your display.
