Photo rendering speed on my MacBook Pro is so slow like it takes hours at 2000 pixels high quality.
See below my info : help much appreciated.

I'M, RUNNING SH3D VERSION 6.6.1 ON;

MAC OS CATALINA

VERSION 10.15.7

MACBOOK PRO RETINA 15INCH MID 2014

PROCESSOR 2.8 GHZ QUAD CORE INTEL CORE i7

MEMORY 16GB 1600MHZ DDR3

SSD HARDRIVE

GRAPHICS NVIDIA GEFORCE GT 750 M 2G

INTEL IRIS PRO 1536 MB

WHY IS IT SO SLOW ?