IPLOT performance is poor plotting to paper and Exporting to PDF.
This performance issue appears to happen on only one machine for any user.
It can take one hour or more to plot a simple dgn file.
IPLOT performs well on all other machines.
The user had over 65,000 temp files in the C:\temp folder.
After emptying the C:\temp folder and the Recycle Bin the performance issue is resolved.