Reducing Rendertime on transparency

Hello guys,
I need some expert advise. I am currently working on a new art style for a pitch. We want to go for the Microsoft Tendril Look like this.

I kinda got to the point where I am happy, but those render times are just insane. My scene renders more than a hour on a FHD picture and still comes out pretty noise. I attached the material in a test scene.
Has someone tips to get those rendertimes down, or is that just impossible with such a look? We are using VRAY CPU at work, would the GPU renderer be faster?

Thanks for your tips
Test.c4d (544 KB)

Why don’t you activate the denoiser? you will get clean image in a fraction of the time. Personally I prefer the Intel open image denoiser that is very effective on both noise and fireflies.
For the materials, those should have SSS on the inner body (I use a simple 2sided) and for the exterior shell a semitransparent plastic shader should be enough, your original setup seems more complicated than it should be.
Here is my attempt based on this reference: 新浪网 on a modern system it should take no more than a couple minutes (you can find the HDR on polyhaven.com):


test.zip (321 KB)

Thanks everyone, that really helped. I think I just went into autopilot mode without rethinking how I achieve certain effect.

@sirio76 thanks for the tip with the 2sided Material, that is actually something I just didnt know works so well.

Got my rendertimes down in my actual scene by quiet a lot.