D5 has been lagging and taking a long time to render and also the workspace has been lagging a lot making it difficult to navigate after the latest update 2.9.1.0509

[arcindesignstudio]

**D5 Render Version:**2.9.1.0509
**Graphics Card:**4070Ti
Driver Version: Nvidia 32.0.15.6614
Issue Description: D5 lagging after update , tried switching to previous version still lagging, the file used to work smoothly in the previous version now it lags even if i switch to the previous version.
Screenshots/Videos Description:

Steps to Reproduce (optional):

[clovisbolasco14]

Hi there, I apologize for the inconvenience. I may need to ask for a few more details regarding this, such as:

• Is this issue also prevalent in other files, or is it file-specific?
• After the update, were there any other changes made? Such as updating the graphics driver? Addition of scatter assets?
• Can you also provide us with the following information?
  
  
  
  
  

Generally, if your dedicated GPU memory usage has reached 80% and above, the graphics card’s core advantage has decreased and will be in an unstable state; at this time, D5 may lag or render slower, and there may be pop-ups reporting errors or flashbacks.
The following settings are available for optimization：

• Start D5 Render with administrator privileges and restart your computer. The program will automatically modify the TDR values, which can improve the stability to a great extent.

• Turn on DLSS.

• Depth of field, Tyndall effect, and other settings can take up a lot of video memory, so use your discretion.

• Higher resolution mapping will also take up video memory, you can replace the mapping of materials farther away from the camera with a lower resolution mapping and try to avoid using replacement.

• More reflective scenes will reduce efficiency, you can turn the specular of materials far from the camera to 0 to cancel the reflection.

• Windows’ own GPU usage data may not be accurate, we recommend using GPU-Z. Check the sensor-memory used parameter for better memory management.

Thank you.

[arcindesignstudio]

It’s the same with all files. yes updated graphics driver , but the issue was there before update. Tried a new file with terrain and few trees issue still persists. [Unique Download Link | WeTransfer](https://Link to model)

[clovisbolasco14]

Hi there. Would it be possible for you to modify your Memory Speed? Based on the image you have sent, it exceeds 4000Mhz which may cause issues such as crashing,etc. We suggest setting it below 4000 Mhz. You could go to BIOS and turn off XMP to change the memory speed or try to update the BIOS version. Let me know if this helps, thank you.

To know more, refer to this link: https://youtu.be/h-MLhGMtheM?si=U5usadsmYwEfYaA1

[arcindesignstudio]

Thanks, works fine now. But not sure if the rendering time is faster the V 2.8

[clovisbolasco14]

You can try turning on the D5 SR Render Widget. Although there will be a slight loss of detail, I think it’s worth trying, especially if time is an issue.