Lens Flare - natural flickering?

Camera–>Bloom–>Convolution or Standard

When using a camera with Bloom, I would like to see a natural Lens Flare, that is kinda “flickering” and not static.

When animating, the Lens Flare created by the Bloom Effect (activated within the Camera Settings), the Lens Flare stays static.

It would be great if there would be an option to control somehow a “flicker” to simulate a natural Lens Flare.

Maybe I am missing something here and it’s already possible to create this kind of “flickering” effect?

Thanks for any info on that,
appreciate it!