Don't get offended / frustrated. I do understand what You mean and bottom line is that there is always not enough computation power in our CPU / GPU's. iRay preview is not fastest but outputs acceptable quality. Personally I think that it's better then Eve or Cycles, but it all depends on content of course.
Daz is far from good, but it's easy to learn and good enough to do stills, that's why You are using it, and many others, to make comics.
Just to put this whole performance thing into perspective.
One of the fastest renderer is redshift (AFAIKT, correct me if I'm wrong) and for example artist Miro from Affected3d (G4E, Bloodlust Cerene) uses this setup:
Code:
Main:
CPU
9900K, 3.6Ghz
GPUs
1 x RTX 2080 for display
1 x RTX 2080 Ti for test renders
Ram
64 GB
Code:
Renderfarm 40 GPUs
3 x GTX Titan X Maxwell
11 x GTX 1080 Ti
26 x GTX 1070
Code:
Software
Maya 2018.5 – main 3D software
Redshift3D – for rendering
Ornatrix – for hair simulation
Cinema4D with Xparticles 4.5 – for fluid simulation
Zbrush 2018.1 – for some blend shapes
Daz Studio 4.10 – for some asset imports / conversion
After Effects CC 2019 – for video editing
Audition CC 2019 – for sound editing
Photoshop CC 2019 – for editing still images
Another artist, squarepeg3d, uses Daz exclusively, AFAIKT, probably blender for some assets, and his turntables are awesome (shame that he don't do more animations) but they are short (few sec.) and there is a reason for that
.
There is a reason why there are people with 4 x 2080Ti in they rigs (Daz forums) and it's not because they brag.
No mater what software You are using, it will always be slow, so "trickery" is needed to make it work faster.
Daz is strange that's true, for example changing viewport to bounding boxes and one would expect that everything will work much smoother, but that's not the case with Daz, every other 3D software (by this I mean Blender / Maya / Max etc.) will fly like crazy.
But it is what it is. At least is free I guess.