# Commands about Improving Performance When Using Xrefs [GstarCAD 2023](Help%20System/GSTARCAD/2023/Index.md) → [Commands](Help%20System/GSTARCAD/2023/Commands/(Commands).md) **Commands：** - [EXTERNALREFERENCES](Help%20System/GSTARCAD/2023/Commands/EXTERNALREFERENCES.md) - [XREF](Help%20System/GSTARCAD/2023/Commands/XREF.md) **System Variables：** - [DEMANDLOAD](Help%20System/GSTARCAD/2023/System%20Variables/DEMANDLOAD.md) - [INDEXCTL](Help%20System/GSTARCAD/2023/System%20Variables/INDEXCTL.md) - [TREEDEPTH](../System%20Variables/TREEDEPTH.md) - [TREEMAX](../System%20Variables/TREEMAX.md) - [XLOADCTL](../System%20Variables/XLOADCTL.md) - [XLOADPATH](../System%20Variables/XLOADPATH.md) --- [Original help](https://www.gstarcad.net/help/GstarCAD_2023_en-US/detail/commandReferences/Commands%20about%20Improving%20Performance%20When%20Using%20Xrefs.html) · © Gstarsoft Co., Ltd.