To speed up node performance for 3D models in Photoshop, simplify 3D layer complexity, enable GPU acceleration, and update your GPU driver.
Simplify by merging unnecessary 3D layers or reducing mesh subdivisions—this cuts the processing load on nodes.
Turn on hardware acceleration: Go to Preferences > Performance > Graphics Processor Settings to leverage your GPU for faster node calculations.
If lag persists, update your GPU driver—outdated drivers often slow down 3D node operations.