Retention in a Bomb Pass game

Hello Developers!

So I created a bomb pass game with abilities, but I am seeing that people leave right after being eliminated and only stay if they win.
What are some ways I can improve retention?

I am going to make the actual game more stimulating, but even so people might leave as soon as they are waiting in the lobby.

I know I should add some things in the lobby, but what should I even add?

Right now there is an obby and also players can spectate.

Thanks : D