From Cinema4D, the rendered version the noise is quite obvious in still, and even worse in sequence. Therefore, I imported them into Nuke for some final adjustment. And Nuke did a great job on this, with gizmo: one is Firefly Killer by Stefan Muller, and the other one is mtPixelFixer v3.0 by Miguel Torija. Both did a great work on the plate. Instant result by a quick plugin and no flicking while footage playing as well.

In addition, a filter with colour contrast added, and a lens distortion also added to act as a bit of imperfection to it.