IMB_colormanagement_setup_glsl_draw_to_scene_linear (only used by VSE preview rendering) inside GPUShaderBinder::to_scene_linear_bind was trying to cache the created OCIO GPU shader, but failed to actually do it: it was querying scene_linear_cache, but putting the shader into display_cache. This lack of caching was costing around 1ms on each VSE preview draw. Pull Request: https://projects.blender.org/blender/blender/pulls/144617