D5 Render Not Working Properly

Hi guys, D5 Render is not working properly now. When I enter the material settings or move around the scene, stutters and freezes occur, the D5 gets locked for a few seconds. I try the scene quality by working at the lowest, but this problem still persists. I’m having this situation even with FPS 30 40. I’ve seen a few articles related to these and downgraded the NVDIA version to 516.94 but that still didn’t work.

Hi, after you downgraded the video driver, please reboot your computer to let it take effect.
If the problem persists, does it also happen to newly created empty files?