CPU usages is just ~13% even after setting everything correctly

OS: Ubuntu 20.04
Bevy: 0.5
Bevy Rapier: 10.02
CPU: Ryzen 4600H

Set the features: https://github.com/Nickan/bevytest/blob/master/Cargo.toml
Set the profile.release https://github.com/Nickan/bevytest/blob/master/.cargo/config
And the run `cargo run --release`

Added just 30000 ColliderBundles: https://github.com/Nickan/bevytest/blob/6df6ea9c40838c2cb138355813074f547f891903/src/main.rs#L45

RapierConfiguration::query_pipeline_active to false jumps the fps to 60fps

Actual Result: Still I am just getting ~20fps and only using 13% of CPU

Expected Result: 60fps and use more than 13% of CPU

Edit: Updated CPU percent