How long does it take to register different impacts in the Double-Slit Experiment? Consider a Double-Slit Experiment with a lens between the slits and the screen. The lens focuses the interference patterns in such a way that R01 + R02 = D0. When a measuring device is put at one of the slits the interference pattern disappears and on the screen we can see R03 + R04 = D0.
Because of the lens there is no way to tell just by looking at the screen if it is a combination of the interference patterns or a combination of the lumps.
Frequency of impacts at positions:

What would a plot of the time taken to get to the screen at positions look like? Would it look the same for when there are lumps and when there is interference?
 A: Photons always have their wave properties (and particle properties). If you want to observe the wave properties the double slit is a good experiment. (The single slit or a dichroic filter is another way to observe wave properties).
The small source, double slit and screen combine to constrain the path of the photons to a few visible choices .... the "interference pattern" shows bright areas where photons can go, the dark areas that have no photons.  Per Feynman " a photon considers all paths" and chooses "the most probable".  Or stated another way as .. every photon determines its own path.
In the QEE a source photon creates 2 entangled photons, the creation of the entangled pair will not occur unless both photons have a path. Per wikipedia "Thus, when a pair of entangled photons is created, but one of the two is blocked by a polarizer and lost, the remaining photon will be filtered out of the data set as if it was one of the many non-entangled photons. When viewed this way, it is not surprising that making changes to the upper path can have an impact to measurements taken on the lower path ...."
In general the QEE was said to allow information faster than the speed of light but this has been disproven.
In the top arm of the apparatus the detector D0 (per QEE diagram on wikipedia) detects both the interfered type photons as well as the regular (single slit like) photons.  In this arm photons take a similar path for both types, the time for this path is the same for both types.  In the bottom arm the path is 8ns longer (per wikipedia), it is in the lower arm where the photons interact with the first set of beam splitters (50/50 random chance) ... when they have the d3/d4 path, the partner (idler) photon shows no interference.  When the partner (idler) photon takes the d1/d2 path it has a choice of d1 or d2 ... thus interference.
