We're on Visualize Standard 2019 R4, just learning how to use it. Having problems getting the light level right. The SolidWorks model just has a plain white background (graphics guy wants no background, shadows, etc.). Once in visualize, the preview lighting has no bearing on the rendered lighting. Have to wait a while for the render to show up, and it's usually way, way darker than the preview or the SW model. Have cancel the render, adjust the brightness a lot, then try again, total trial and error, very time consuming. Any tips please?

The system is Dell Precision 3431 i-7-8700 3.2GHz, 32GB RAM, NVIDIA Quadro P620, Windows 10 Pro 64bit.