What happens when ViewToFile while on Raytracing

@nathanletwory
On this topic, I have posted the _SystemInfo on the other post.
I understand my machine is slow, but since Rhino7 it became really extremely slow. Can you check from the _SystemInfo data if that is normal?
For instance, I am trying to test the subface settings on a PBR Material, with a grid of 5×5 cubes with different lights combinations inside. I am doing a 600×400 render with 100 passes. I use the -ViewCapturetoFile to make the image, which gives me the opportunity to know the time of the rendering. This last try took 2:05 hours.
Although it takes forever, the result is pretty miserable, and I cannot see much difference between all these situations.
The alternative normal render view is very fast but totally unusable, besides the differences look a bit random.

Raytracing
ViewCapture20210808_151602

Render View
ViewCapture20210808_182907
.