Honestly? Every time I've had a hard time it's been because of security. Not the drill, that's fine, but the line. And it's but the TSA, they're working hard. It's closing checkpoints so only precheck travelers can go through them. Even to where regular travelers had only one of four checkpoints to go through. Which also caused massive chaos in the ticketing area.
Then there's the sheer fuckery that is LAX international. It is just incomprehensible without being there. For starters you get dropped off on the side of the road with a vague hand waive to walk "that way". No signs, no helpful people nearby, just 50/50 on walking the right way.