# GetDefaultSubsystem()

> Gets the loaded default subsystem.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine.AdaptivePerformance](/engine/6000.6/script-reference/unityengine/adaptiveperformance.md)
* **Assembly:** UnityEngine.AdaptivePerformanceModule

```csharp
public abstract ISubsystem GetDefaultSubsystem()
```

### Returns

| Type                                                                    | Description                                                      |
| ----------------------------------------------------------------------- | ---------------------------------------------------------------- |
| [ISubsystem](/engine/6000.6/script-reference/unityengine/isubsystem.md) | The loaded subsystem, or null if no default subsystem is loaded. |