Severe Lag in InDesign 19.5 When Working with Older Files or Adding Images

I updated to the most recent version of InDesign and now my files have a severe lag time. I've noticed this happens in a few different scenarios:

• If open a file that was created in an older version of InDesign (even the previous version 19.4)
• If I start a new file in 19.5 - the program works fine. But once I start adding images into the file, anything I try to do, move, click, right click - has a 20-30 second lag time.

Is anyone else having this issue and if so - is there a way to fix this? When I downgrade to 19.4 - all of the issues disapper, so I know this has to be an issue with 19.5.

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Things I've already tried:

• Restarting computer
• Uninstalling/Reinstalling 19.5
• Resetting Preferences on Quit