Stuttering stops after 3 times of scene reloading, but, how to avoid reloading? [Android]

Hi!

My game is stuttering when I first start the scene, when I reload it, it becomes more and more smoother, after the 3. reloading it reaches the target FPS and there weren't any stuttering.
I make it in 1 seconds, the time between every scene reloading is 0.25 seconds.
The stuttering isn't stop if I play the game and the FPS only become more higher and higher when I reload the scene, it not depends how much I play in the scene, there were minutes and nothing happend if I don't reload it.
How could I avoid the scene reloading?
I put prefabs to "Preload Assets" array but it doesn't help.

 

I found the problem.
I don't know why, but when I reload the scene the resolution becomes smaller and smaller and this causes that the FPS becomes higher and higher.