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# Actor
**Actor** is our substitute for **MonoBehaviours**, it optimizes and creates shortcuts for useful stuff.
Moving an object
Moving object with MonoBehaviours
```
transform.position = new Vector3(0, 0, 123);
```
Moving an object with Actor
```
Position = new Vector3(0, 0, 123);
```
The reason we do that is because transform**.**position **goes into C++** every single time to get the transform, which can lead to performance issues later in development. Also it is a nice shortcut.
You can use the same idea for Rotation, and for getting the directions relative to that transform, like Forward, Up, Down.
Callbacks
The standard callback methods also have been changed, you'll use **OnStart** instead of Start, **OnAwake** instead of **Awake**, **OnDestroyed** instead of **OnDestroy**.
Another think you need to know is **HandleUpdate**, **HandleLateUpdate** and **HandlePreUpdate**. All these methods have one thing in common: they listen to an [**event bus**](broken://pages/MOeO4PpPKTYLJv9IV3yU) to be called.
The reason being that in standard Unity environment, the engine searches through the entire instantiated object's list and tries to find the **Update** method declared somewhere. That's very slow.
Instead, our friend from the [CS Framework](https://github.com/coimbrastudios/framework) decided to create an [**event bus**](broken://pages/MOeO4PpPKTYLJv9IV3yU) for the **player loop timing**, so Unity only needs to worry about one object with the **Update** method.
Every method that listens to the **UpdateEvent** [**event bus**](broken://pages/MOeO4PpPKTYLJv9IV3yU) and its variants will then be called.
## Networking
For networked objects, instead of **NetworkBehaviour**, you will use **NetworkActor**. They work the same way as **Actor**.
---
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