I should have been more specific.I was using my phone. Use the UFO ghost test and see the trails. Not the frame counter as shown above. As stated before, that particular monitor works best at 120hz instead of 144 because the pixels can go 144hz, but will leave the same trails because the pixel itself can not change without the persistence.
The point as made earlier, 120hz will look as good if not better then 144hz because of the pixel persistence. SPECIFIC to the VG278.