Game Slowing And Stopping On Android Phone

Hello.
And when you test it with your phone in an Android studio, it's slowing down, and it's going to stop at two or three stages.

Should we make a very simple game?
It works well on a PC, and it's not a complicated game.
The test phone is Galaxy S7.

Thank you.

 

1. is your game endless?
2. what size is the apk?

 

1.This is a level clear game with stage selection screen.
2.APK size is about 32MB small~

 

Ok how much scenes you have in each level?

 

There are about 12 scenes per level. ...I'm trying to cheer up again.

 

i think this is the problem at firt i wanted to make an endless game with one 3d world and for say 90 scenes.
the problem here that this is what makes the game run slow cus you have many scenes and after you pass 4 scenes and didnt delete the scene you have passed this what make the game run slow there too much scenes and objects.
i have changed my game to that every world i have i put only 3 scenes and the game run smoother.

 

I need to make a game considering the difference between PC and APK.
Your answer was very helpful! Thank you~