Can you please fix Kennen FFS

First of all, his lightning rush is supposed to be a speed boost, yet if anyone touches you there is a hidden snare. You get a massive penalty to move speed when the effect ends. You can test it. Activate E when an enemy is chasing you. As soon as the effect ends, the enemy will catch up to you every single time.

Second of all, this champion is extremely weak. His shuriken does less damage than an auto-attack for the first two levels. His W is worse. This champion does no damage. He's supposed to devastate a team fight, yet he can be safely ignored. He's one of the few champions in the game who cannot even kill a minion wave with one spell combo.

Lastly, he is full of minor problems like long cooldowns, high energy costs, low range, and limited item choices.