How to Fix AutoCAD Slow Performance Quickly and Easily

To fix AutoCAD slow performance, start by cleaning your drawing files using AUDIT and PURGE commands, and reduce the number of open drawings. Also, adjust graphics performance settings and update your video drivers to improve speed.

Why This Happens

AutoCAD can slow down due to large or corrupted drawing files, excessive open drawings, outdated graphics drivers, or heavy visual effects. These issues cause the software to use more memory and processing power, making it respond slowly.

autocad commands

AUDIT
PURGE

Output

Command: AUDIT
Fix any errors found? [Yes/No] <strong>Yes</strong>
Command: PURGE
Select objects to purge or [All/Regapps/Non-Purgeable] <strong>All</strong>

The Fix

Run the AUDIT command to check and fix errors in your drawing. Use PURGE to remove unused objects and reduce file size. Close unnecessary drawings to free memory. Turn off unnecessary visual effects in Options > System > Graphics Performance. Update your video card drivers to the latest version for better compatibility and speed.

autocad commands and instructions

AUDIT
PURGE
OPTIONS > System > Graphics Performance > Disable Hardware Acceleration
Update video drivers from manufacturer website

Output

Command: AUDIT
Errors fixed.
Command: PURGE
Unused objects removed.
Graphics performance optimized.
Video drivers updated.

Prevention

Keep your drawings clean by regularly running AUDIT and PURGE. Avoid opening many drawings at once. Save backups and avoid complex objects when possible. Regularly update AutoCAD and your graphics drivers. Disable unnecessary visual effects to keep performance smooth.

Related Errors

Other common performance issues include slow zoom and pan, which can be fixed by disabling smooth line display, and lag when plotting, which improves by updating plotter drivers and simplifying layouts.

Key Takeaways

Run AUDIT and PURGE regularly to clean and optimize drawings.

Close unused drawings to free system resources.

Update graphics drivers and AutoCAD to the latest versions.

Disable unnecessary visual effects to improve speed.

Avoid overly complex objects and large files when possible.