Hello,
What are the HDRI sky settings? Especially the parameter of Global Illumination (GI)? The HDRI sky that you use is not it simply dark? Have you got the quality settings for shadows? In your image the images seem roughly calculated.
Christophe - FRANCEArchicad Designer and Teacher
Archicad 15 to 27 FRA FULL
OS 13 Ventura - MacBook Pro M2 max- 32Go RAM
"Quality is never an accident ; it's always the result of an intelligent effort" John Ruskin