FPS drops when open file in a newer TD build

Hello TouchDesigner Community,

I updated the TD build from 2021.14360 to 2023.12000 on my desktop, but when I opened the exact same file in the newer version, the FPS dropped to 2, so it’s very laggy.

I have two graphic cards on this Windows 10 desktop.
Gpu0 =Nvidia Quadro RTX 5000
Gpu1 =Nvidia Quadro P400

I’m not sure, but I suspect it’s about GPU

In the task manager, if I open in the old version, it’s running fine(FPS 60 on TD), showing it running on gpu0-3D

But when it runs on the new version, it’s very laggy(FPS 1 or 2 on TD), showing it running on gpu1-copy. If I run an empty file(2023.12000), the FPS is 60, but it’s still on gpu1-copy


I’ve updated the Nvidia driver to the latest version and tried to assign TD to the GPU0(Nvidia Quadro RTX 5000), but it doesn’t allow me in Windows Graphic Setting.

I’m a bit stuck on this. It would be great if someone could have a look and let me know what you think. Thanks!

Hi @SunStudios

Can you maybe share the project with us here or by email so that we have a look ?

Are you using GPU Affinity?

Can you also check the followings:
Make sure that all your drivers, including integrated graphic drivers, are up to date and that your machine is free of bloatware.

The Bulk Crap Uninstaller helps in identifying unwanted or unneeded software: https://www.bcuninstaller.com/

Find the latest driver for your GPU at Official Drivers | NVIDIA
or use Nvidia Geforce Experience Update Drivers & Optimal Playable Settings