copied and pasted from that same thread:
"Also, I don't know if it has been mentioned yet but improving motion performance by reducing the duty cycle comes at the cost of introducing flicker. CRT might have the best motion performance but also has the most obvious flicker. The tradeoff will always exist unless massive amounts of interpolated frames are used.
For instance a 240Hz LCD with interpolation will have great motion performance without any flicker but it also means that 90% of the frames will be calculated when fed a 24Hz signal(yikes)"