Fix yet another time the "Lets go animation"

[FrancoisDuchene]

After some tests on other phones, it seems like the Lets go animation doesnt always appear. It could be caused by lag of the phone. The animation is triggered by a float increasing at each passage in the render loop. once a certain number is reached, the animation doesn't trigger anymore. If the game lag and doesn't show anything until a time the timer already reached, the animation won't trigger.