@GENEHINKLE4368,
Welcome to the Civil 3D forums! Great post, it can be a frustrating thing to experience a slow-down from conventional performance. I am checking in to see if any suggestions from @Anonymous helped you increase the speed. Typically I see a degradation in performance due to a couple of reasons, yes, sometimes its updating relevant firmware such as a graphics card. Sometimes its based upon settings being migrated from an older version rather than non-customized settings.
I see the steps you had taken were to do a reinstall. Have you tried to do a clean uninstall/ reinstall? It's more work but really gets any old erroneous stuff out of the registry and cleans all the paths that could corruption.
2019: Resolving installation issues with a clean install of AutoCAD Civil 3D
Hardware can cause this, and does at times, and since there needs to be a translation layer between the hardware and Autodesk software (Drivers) in order for it to perform correctly sans-bugs /problems it is best to update that firmware and the drivers for the various devices. That aspect is something that is so wide ranging we will just leave it here, assuming you have updated the hardware and it meets the current AutoCAD / Civil 3D minimum requirements and is upon the Certified Hardware list.
I'll list some of the more common causes of a slow down that extends into the Autodesk software.
- Customization/ corruption - AutoCAD profiles, CUI modifications, Templates - (typical to issues are that these have been migrated from an older version)
- Remedy/ Isolate - Use freshly installed out of the box templates (current version acad.dwt etc.) does the behavior still occur?
- Remedy/ Isolate - Use a clean 'out-of-the-box' profile to isolate that your own profile is not the issue. Try this article to isolate whether that is the issue. Resolving user specific issues by resetting AutoCAD Civil 3D 2019
- Network Issues - Profiles stored/ served across a network, resources beyond file serving and plotting being leveraged on a network location.
- Remedy/ Isolate - Login to a local admin account using no network resources whatsoever. Does the behavior still occur.
- Drawing Corruption - Sometimes a drawing can become corrupt based upon AEC objects, migrated/ outdated template files, Version changes. Typically this behavior is file based, as in it will occur in one file and not in a factory file while launching an ACAD.DWT file etc. or inconsistent behavior.
- Remedy/ Isolate - AUDIT/ RECOVER/ PURGE/ -PURGE ->REGAPPS all of these can remove someone out of a corruption state. Also using the QSELECT command once inside of the file to begin selecting things by their isotype and divide/ isolate the drawing objects to check and "drill-down" into which object is causing the slow-down.
It's not ideal to have to go through any of these steps to isolate the cause only to find out that something as simple as a migrated profile from another version, but it is probably the most common vector that solves inconsistent software behavior. Should you find yourself in that situation, recreate your profile in the new software after cleaning the profile, and begin anew, with a quickness. I hope this helps some.
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Copper Chadwick
Designated Support Specialist
