Comment by BlurBusters

For things like a pan -- you have to apply it globally because your eye movements will smear the static pixels and motionblur them across your retinas.

However, the CRT simulator actually is variable-MPRT; it does compress the light emissions as quickly as possible as early as possible. Dim greys, for example are brightened and pushed in an earlier refresh cycle of the series that simulates a CRT refresh cycle.

So dimmer pixels get lower MPRT and brighter pixels get higher MPRT. Any unemitted brightness gets cascaded to subsequent refresh cycle until fully emitted to meet Talbot Plateau Theorem.