When it comes to systems where speed matters, being able to predict what will happen is key. Apps that need to run fast want to know when things will get done and how the network will act. If you can't really be sure when new blocks will be made, things can slow down, become riskier, and it gets much harder to build solid financial tools.
Fogo makes things easier to guess by planning out who will be in charge. Instead of picking block producers randomly at the last second, the network figures out a leadership plan early, based on stake distribution.
This plan says which validator will make blocks during certain times. Since the plan is known beforehand, validators can get ready for their turn.
Being ready is key when things need to happen fast. If a validator knows they'll be making blocks soon, they can use resources in a smart way, make sure their network is solid, and prep transaction pipelines. This cuts down on delays that could happen if you just picked leadership without any planning.
The leadership plan is figured out at the end of each epoch doing simple math. Validators with more stake get more chances to lead.