Infuse occupies too much memory

I find Infuse occupies more than 20G of memory but the metadata is only 78M. How does that happen and how can I fix it?

What device is this on?

On iPhone/iPad this number will include space used for synced files.

Right. It’s on iPhone. Is there any way I can delete these synced files?

You can do that

  1. in iPhone storage → Infuse → details
  2. by removing synced items in Infuse Files/Folder view
  3. by deleting the app and downloading again