How to Fix Finder Running Slow on Mac

What Causes This?

Finder usually slows down when macOS has to process too much clutter at once, such as large folders, overloaded desktop items, cached preview data, or too many background apps competing for memory and disk access. It can also happen when external drives are slow to respond, Spotlight indexing is busy, or there is low free storage on the Mac. In some cases, corrupted Finder preference files or system cache files make folder browsing and file searches feel laggy.

Common Symptoms

• Finder takes a long time to open folders or files
• File previews and thumbnails load slowly or not at all
• The spinning beach ball appears when browsing in Finder
• Searching in Finder feels delayed or incomplete
• Right-click menus or sidebar locations take several seconds to load

How to Fix It Manually

1. Relaunch Finder

   • Press Option + Command + Esc to open Force Quit Applications.
   • Select Finder from the list.
   • Click Relaunch.
   • Test whether folders now open faster.

2. Restart your Mac

   • Click the Apple menu in the top-left corner.
   • Select Restart.
   • After rebooting, open Finder and check if performance improves.
   • This clears temporary memory pressure and stops stuck background processes.

3. Clear desktop clutter

   • Move large numbers of files off the Desktop into folders like Documents or another organized location.
   • Finder treats desktop items as active content, so hundreds of files can slow it down.
   • Empty the Trash afterward if you no longer need old files.

4. Check available storage

   • Click the Apple menu > About This Mac > More Info > Storage Settings.
   • If your startup disk is nearly full, delete or move large unused files.
   • Focus on downloads, old videos, duplicate files, and unused apps.
   • Try to keep at least 10–20 GB of free space available.

5. Delete Finder preference files

   • In Finder, click Go > Go to Folder.
   • Enter: ~/Library/Preferences/
   • Find the file named com.apple.finder.plist.
   • Move it to the Trash.
   • Restart your Mac or relaunch Finder.
   • This resets Finder settings that may be corrupted.

6. Clear system and Finder-related cache

   • In Finder, click Go > Go to Folder.
   • Enter: ~/Library/Caches
   • Look for cache folders related to Finder, previews, or heavily used apps.
   • Move unnecessary cache contents to the Trash carefully.
   • Restart the Mac after clearing cache files.
   • If you are unsure what to remove, skip this step rather than deleting random system files.

7. Disconnect problematic external drives and network locations

   • Eject any external drives you are not using.
   • In Finder, remove stale network shares or sidebar locations that take a long time to connect.
   • Slow or failing drives can make Finder hang while it tries to load folders or metadata.

8. Reduce background load

   • Open Activity Monitor from Applications > Utilities.
   • Check the CPU and Memory tabs for apps using excessive resources.
   • Quit apps that are consuming large amounts of RAM or CPU if they are not needed.
   • Heavy background activity can make Finder feel slow even if Finder itself is not the main problem.

Fix It Automatically with Kudu

If Finder is slow because of cache buildup, junk files, low storage, or general system clutter, Kudu can scan for those issues and clean them up automatically. It gives you a faster way to free space and reduce the background problems that often make file browsing lag on macOS.

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