If I have 4 different canvases for 4 different UI screens in one scene. And each canvas has multiple panels inside.

Canvas list:

• Pause
• Game Finish
• Gameplay
• Settings

Then what is the best practice for best performance, and no extra overhead at runtime for the following situations? I am not caring about the scene loading time at the moment. I am targeting Android platform, med end devices mainly.

1. I keep all the canvas game objects active by default in the scene and in Start() function I am disabling all canvases expect Gameplay so that you only see gameplay UI when the game starts.

or

2. I keep all the canvas game objects disabled by default in the scene. So when the game starts, I am enabling Gameplay canvas in Start() menu and rest of them in different situations?

Here are my doubts,

• Will there be any memory related performance differences?
• Is loading time affected?
• Will I have any CPU overhead or spikes if I activate any canvas object at run time for the first time, which was never active when the scene started?