A family member bought a new iPad 8th Gen to replace their aging Air 2 because it felt slow and laggy on iPadOS 13. Because of that I never recommended upgrading to iPadOS 14. I did a DFU mode restore to 14.4 before restoring their data via Finder. Now however, he interface feels just as laggy as the Air 2. Is there anyway to fix this without doing another restore and setting up as new?