Hi,
Is it normal that when I render the scene, the percentage of Cuda doesn't exceed 5%?
Lately all the renders that I do are slower than normal.
I already tried to change the drivers, but it doesn't fix it.
Does somebody knows why it could be?
Thanks
https://ibb.co/pRxpGY6
CUDA doesn't work
Difficult to say, please, open the scene, then go to c4doctane Settings/Others tab, and, at the bottom of the panel, enable all the Log option checkboxes:

Then, load the scene in Live View, then in Picture Viewer, and share the c4doctanelog.txt file that you find in c4doctane directory, or in the path specified in Settings/Others panel, thanks.
Please, also go to Control Panel/Device Manager/Display adapters, and share a screenshot, thanks:

Then go to Control Panel/Nvidia Control Panel, press the System Informations link, and share another screenshot, thanks:

ciao Beppe

Then, load the scene in Live View, then in Picture Viewer, and share the c4doctanelog.txt file that you find in c4doctane directory, or in the path specified in Settings/Others panel, thanks.
Please, also go to Control Panel/Device Manager/Display adapters, and share a screenshot, thanks:

Then go to Control Panel/Nvidia Control Panel, press the System Informations link, and share another screenshot, thanks:

ciao Beppe