Some renders.

Not Bad, Thanks!

Base +8, sasukesaku18 +7, bluemandc +6

I think you need some more film grain

Base +6, Kobalt +10, bluemandc -6

I use DAZ3d

Base +6, sasukesaku18 +7, bluemandc +6

Your scenes aren't lit correctly so you get grain and it probably takes ages to render as a result.

Base +8, bluemandc +6

I've seen TVs from the 1970's with less grain

Base +5, bluemandc -6

i think you keep the default rendering.
in daz in the render setting,go to "progressive rendering",then grow the "max samples" and "max time".
i think you will see change :)

Base +6