League of Legends (LoL) Question: lethal tempo?

Lethal Tempo is more for dueling power. It typically runs out after killing your first opponent or in the middle of the fight. In my opinion, lethal tempo is almost useless in teamfights. Jax with lethal tempo is playing him more like an assassin/brawler like a nocturne top where he’s more focused on picking one or two off. More importantly, Jax doesn’t need to get his passive maxed ASAP to win fights. Late game he is a monster and will kill almost anyone instantly without lethal tempo. By the time your E stun runs out, you’ll most likely already be at max stacks. You just need to survive long enough for your E and Q to come back up because that’s what you mainly play around as Jax.