high virtual time relative speed kills performances

[mockersf]

Bevy version and features

• main

What you did

use bevy::{
    diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
    prelude::*,
};

fn main() {
    App::new()
        .add_plugins((
            DefaultPlugins,
            LogDiagnosticsPlugin::default(),
            FrameTimeDiagnosticsPlugin::default(),
        ))
        .add_systems(Startup, setup)
        .run();
}

fn setup(mut time: ResMut<Time<Virtual>>) {
    time.set_relative_speed(2000.);
}

What went wrong

FPS is 0.5

[alice-i-cecile]

This is probably overhead from running schedules? Profiling is required to diagnose more fully though.

[mockersf]

yup it's the fixed schedule that runs a lot every frame