Two players are "controlled" by the same player controller

So, I am trying to make a multiplayer game. But when I hit play with 2 players and listen server. The client 0 is laggy and is always jittering. It seems like it gets the data of the player that is hosting.

For exemple (with client 0) I try to sprint, but it just jitter like it wants to sprint (speed = 600 for exemple)but is being reset by the hosting player (speed = 400 for exemple). Like its getting the speed from the hosting player.

Also I dont know if it is the issues but I saw that there is only one player controller being created.
image