Check the MediaCore folder to verify whether the installed plug-ins are compatible with Premiere Pro.
- Windows: C:\ProgramFiles\Adobe\Common\Plug-ins\7.0\MediaCore
- macOS: Macintosh HD/Library/Application Support/Adobe/Common/Plug-ins/7.0/MediaCore
To check if an effect is responsible for the reduced performance, disable the audio or video effects applied on a sequence to ease the processing load. You can then enable these effects again when you export.
Use Global FX Mute button in the Program Monitor to mute all effects at once.
You can also disable the effects individually from the Effect Controls panel.
For more information, see Remove audio or video effects in Premiere Pro.
Check the MediaCore folder to verify whether the installed plug-ins are compatible with Premiere Pro.
Move the plug-ins temporarily from this location to any other folder and check if Premiere Pro is working properly without the third-party plug-ins. If the issue is resolved, then update the plug-ins, or contact the plug-in vendor for a compatible version.