Admob banner preload

Hey , I would like to know if it's efficient to preload an admob ad while the game is being played and then only show ad banner on the game over screen? Or is it better to preload and show on one screen ?

It decides what fits your game.

Of course you will make more money (probably) if the ads are showed all the time instead of game over screen, but remember that if it gets in the way for gameplay or people find it annoying so could that lead to negative impact on the game (People might quit it)

Yeah that's right, but I was wondering if preloading the admob banner while in actual game and only show that banner on gameover screen will make the banner appear quicker ?