sends a trigger when the performance goes below a threshold


## Description


The performance is a number that goes from 0 to 1.

It is calculated like this: `performance = current FPS / desired FPS`.

Therefore, a performance of 1 means that the scene is running smoothly.

A performance of 0.5 means it is quite choppy. (around 30fps, if the desired fps is 60)



## Parameters
no params