Disable file management software or test drawings outside of the software to verify this is not slowing down AutoCAD.
Enable hardware acceleration within AutoCAD (see How to enable or disable hardware acceleration in AutoCAD).
Reset AutoCAD to default options per: How to reset AutoCAD to defaults or How to resolve user specific issues by resetting Civil 3D to defaults.
Delete temporary files (see How to delete temporary files in Windows).
Momentarily disconnect from all networks.
(Set CACHEMAXFILES back to 256 after it restarts.)
Clear the AutoCAD graphics cache by typing CACHEMAXFILES on the command line and set it to 0 (zero), then restart AutoCAD.
Install the latest AutoCAD update (see Install Updates, Add-ons, and Enhancements).
If one solution does not improve performance, proceed to the next strategy: Solution: Try the following solutions in order, testing AutoCAD each time. ), which cannot be opened (permission, locked, file not found.
Drawing tries to connect to a network file (for example external reference, drawing standard.
Slow Internet connection, when working from remote.
This includes amount of RAM, type of graphics card (GPU), and the central processing unit (CPU) in the machine.
Computer specifications do not meet the criteria outlined in the System Requirements for the version of AutoCAD in use.
Non-specific issues caused by docking stations (when using laptop computers).
Monitors chained together via USB connection.
File is stored in an unsupported working location or in a folder that is syncing to one.
Dual graphics systems not using or utilizing higher end graphics card.
Graphics settings may not be compatible with a remote system.
A graphics card is not certified or is malfunctioning.