Originally Posted by
skidv25
The main checkpoint always seems overstaffed, and is full of WTMD-only lanes, so the combination of those two things helps to keep the lanes moving.
Add in the fact that there are numerous lanes (something like 24 in total that can be going at once) and it helps things out - often it might only be 4 lanes for a terminal, so even though an airport might have 24 lanes total, it's rather spread out rather than funneling into one area.
The fact that it has PreCheck as well is also a significant ^.