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[EMSUSD-3680] Performance Regression in Transformations ( v0.35.0 ) #4585

Description

@hamedsabri

pxr_sphere_color.zip

Describe the bug
It appears that a performance regression was introduced in v0.35.0. This issue is not present in v0.33.0.

Steps to reproduce
Using the attached example (pxr_sphere_color.usda), transform interactions run at roughly around 60–80 FPS which is quite low.

Image

Expected behavior
For such a small scene the FPS should at least match native Maya interaction ( 120 FPS )

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Specs (if applicable):

  • OS & version Windows 11
  • Compiler & version Visual Studio Compiler
  • Maya version 2025
  • Maya USD 0.35.0
  • Pixar USD 0.25.11

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