Performance Improvement When Manipulating Views You can use the Level of detail system option to improve the performance when manipulating views. To access this option, click Tools > Options > System Options > Performance. Performance is improved for Zoom In/Out, Pan, and Rotate in draft quality HLR/HLV and wireframe modes of models. Parent topicSOLIDWORKS Fundamentals Application Programming Interface Changes to System Options and Document Properties Ellipses