Are you new to SpriteKit? Is your game CPU high or glitching as you play it? There can be multiple reasons for this, but let’s look at one of the rookie or a common mistake of someone who is new to Spritekit. Overloading the animating and rendering process of the game scene with your code. What does this mean? Let’s have a look.
In the traditional iOS view, the contents of a view are rendered once and only when the model’s contents change do they render again. This model works very well because in practice most view content is static. SpriteKit, on the other hand continuously updates the scene contents and renders it to ensure that animation is smooth and accurate because it is designed explicitly for dynamic content.
The process of animating it is tied to a scene object SKScene. Here is the model below.