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# Factorio Prototype Docs Version 2.0.77

# PerceivedPerformance - Prototype Docs

## PerceivedPerformance :: struct

Not all prototypes that use this type are affected by all properties.

## Properties

- default
- sorted

minimum optional | :: double | Affects animation speed. [...]
Affects animation speed. [...]
maximum optional | :: double | Affects animation speed.
Affects animation speed.
performance_to_activity_rate optional | :: double | Affects MainSound if MainSound::match_progress_to_activity, MainSound::match_volume_to_activity or MainSound::match_speed_to_activity is `true`.
Affects MainSound if MainSound::match_progress_to_activity, MainSound::match_volume_to_activity or MainSound::match_speed_to_activity is `true`.

maximum optional | :: double | Affects animation speed.
Affects animation speed.
minimum optional | :: double | Affects animation speed. [...]
Affects animation speed. [...]
performance_to_activity_rate optional | :: double | Affects MainSound if MainSound::match_progress_to_activity, MainSound::match_volume_to_activity or MainSound::match_speed_to_activity is `true`.
Affects MainSound if MainSound::match_progress_to_activity, MainSound::match_volume_to_activity or MainSound::match_speed_to_activity is `true`.

## Properties

### minimum :: double optional

Default: `0`

Affects animation speed.

Must be less than or equal to `maximum`.

### maximum :: double optional

Default: Max double

Affects animation speed.

### performance_to_activity_rate :: double optional

Default: `1`

Affects MainSound if MainSound::match_progress_to_activity, MainSound::match_volume_to_activity or MainSound::match_speed_to_activity is `true`.

Type used in

- BeaconPrototype::perceived_performance
- BurnerGeneratorPrototype::perceived_performance
- CraftingMachinePrototype::perceived_performance
- FusionGeneratorPrototype::perceived_performance
- FusionReactorPrototype::perceived_performance
- GeneratorPrototype::perceived_performance
- MiningDrillPrototype::perceived_performance
- OffshorePumpPrototype::perceived_performance