Improve OpenGL and Wireframe performance - Windows only - Nvidia graphics only in Knowledgebase Posted July 18, 2019 5 minutes ago, Simon78 said: Unforunatley there is no difference for me with or without Program Settings. Most rendering goes with CPU. (Vectorworks 2019 with Nvidia RTX2070). Taskmanager says only 3% GPU activitity with renderworks final and so on. and CPU full 100% .... This article is referring to improving the performance of OpenGL and Wireframe rendering. Renderworks rendering uses your processor while OpenGL and Wireframe use the graphics card. The article linked below explains in more detail what hardware is used for specific render modes.