Hello everyone, I am a newbie user of iclone

In the past few weeks of use, I have been collecting various information on the Internet

The most troublesome is rendering pictures or videos

First, I use the iclone preset renderer. I think the effect is not very good. I always feel that light and shadow are too stiff.

After using iray, I think this is exactly what I like

But because I am a member of Premiere, the graphics card does not need to be too advanced, so it is an RX570 from ancient times.

CPU is AMD 3900X, Ram 32G

I saw information about iray on the Internet, saying that it supports nvdia GPU computing, so I reluctantly bought RTX 3080

No matter how you set it up after you go home, iray’s calculation speed cannot be improved

Same as before, it is 100% cpu

What's the problem?