CIVIL3D Performance Improvement

The following steps can help improve Civil 3D performance in Softdrive.

Please try them one at a time.

 Base AutoCAD Settings (Apply First)

1. Disable DX12

   • Command: GFXDX12 → set to 0

2. Disable Hardware Acceleration

   • Command: 3DCONFIG → turn off hardware acceleration

3. Set CursorType to Default Windows

   • Command: CURSORTYPE → set to 1

4. Disable ToolTips and Rollover Tips

   • Application Menu → Options → Display tab → uncheck Show ToolTips and Show Rollover ToolTips

   • Or: TOOLTIPS = 0 and ROLLOVERTIPS = 0

5. Disable Dynamic Input

   • Status bar → right-click Dynamic Input → uncheck all

   • Or: DSETTINGS → Dynamic Input tab → uncheck everything

6. Disable Selection Preview

   • Application Menu → Options → Selection tab → uncheck When no command is active

   • Or: SELECTIONPREVIEW = 2

Civil 3D–Specific Optimizations

7. Set Corridor Rebuild to Manual

   • Prospector → right-click Corridor → Properties → set Rebuild = Manual

8. Control Surface Rebuilds

   • For large surfaces, disable Automatic Rebuilds and rebuild manually.

9. Use Data Shortcuts Instead of Xrefs

   • Create Data Shortcuts for alignments, surfaces, and pipe networks instead of attaching full drawings.

10. Simplify Styles & Labels

• Reduce contour density, label frequency, and freeze unused object layers.

• Optional: REGENAUTO = OFF to stop constant regen.

11. Clean Drawings Regularly

• -PURGE (use Regapps option)

• AUDIT to fix database issues

12. Disable Event Viewer Auto-Startup

• Command: EVENTVIEWER → right-click → uncheck Automatic Startup

13. Adjust Auto Save Frequency

• Application Menu → Options → Open and Save tab → increase save interval (e.g., 30 min).

14. Turn Off Unused Services

• Command: GEOMAP = OFF (disable online maps)

• Unload/unlink any Point Clouds not needed

15. Use Lighter Templates / Break Projects

• Separate DWGs for corridors, surfaces, and alignments.

• Reference with Data Shortcuts instead of loading everything in one file.

Applying these steps should improve Civil 3D responsiveness and reduce lag in Softdrive.
If performance issues continue, contact IT for further optimization.