I'm using the ocean plugin from this example https://threejs.org/examples/webgl_shaders_ocean.html
and in Update we are animating the water uniforms over time but the effect is not always smooth even in a pretty much empty scene, it occasionally judders as if update is not constant.
update(){
{
//@ts-ignore
this.water.material.uniforms[ 'time' ].value += 1.0 / 60.0;
}
}