CC absolutely does not read the context again during each run. For example, if you ask it to do something, then revert its changes, it will think the changes are still there leading to bad times.
It can't be bargained with. It can't be reasoned with. It doesn't feel pity, or remorse, or fear. And it absolutely will not stop... ever, until you are dead.
The real summary: Unity is used as rendering engine and various rendering options are toggled on without much worry about the big picture. Add in some Unity "packages" and the patchwork of rendering things with unpredictable (and hard-to-fix) performance is ready.