A game is lag when play in standalone mode. But play smoothly in new editor pie

Sound are loaded partially in a first minute of game. All sound burst at 02:03
Bullets from green jellyfishes are not spawned.

But when I play in editor pie, all sound play correctly.

I copied a project from UE4.21.2 to UE4.22. This kind of lag does not happen in 4.21.2.

Can I make a game load correctly ?