Hi, i want to make a mid sized game with bitsy. But i've noticed something. I'm playing bitsy games on my phone and games with lot of graphics, rooms or content have performance issues. After few rooms they start to lag and drain more battery. For example these games have bad performance:

https://eevee.itch.io/roguelike-simulator

https://candle.itch.io/flotsam

But my recent project runs fine:

https://zackyzzz.itch.io/roguelike-rng-simulator

Why is that?

Is it because  i'm using the newest version? Or because my work is tiny?