File manager (cosmic-files) loads very slowly when FUSE-mounted pCloudDrive is present

[JoostvandenOever]

System Information

• OS: Pop!_OS Cosmic (latest alpha as of March 2025)
• DE: Cosmic DE (Wayland)
• File manager: cosmic-files
• pCloud client: Official AppImage from https://www.pcloud.com/

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Summary

After logging in and launching the cosmic-files file manager, there's a noticeable delay (approx. 10–15 seconds) before the home directory is displayed — this only happens when the official pCloud AppImage has mounted the ~/pCloudDrive FUSE-based directory.

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Context

• The pCloud AppImage creates a virtual mount at ~/pCloudDrive using FUSE
• In my case, this cloud drive contains ~300GB of existing folders and files
• The delay occurs even when not opening pCloudDrive directly in the file manager — the folder just being present in $HOME seems to trigger it
• Once loaded, everything behaves normally

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Steps to Reproduce

1. Run the official pCloud AppImage and mount your account (must contain files)
2. Wait for ~/pCloudDrive to appear
3. Launch cosmic-files
4. Observe slow initial load of home directory (blank window for 10–15s)

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What I Expected

The file manager should open the home folder without delay, regardless of whether a mounted FUSE folder is present — even with many files inside.

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Notes

• This is a real-world backup workflow (syncing documents/projects to pCloud)
• I haven’t yet tested whether this occurs in other file managers (like Nautilus or Dolphin)
• I also haven't checked journalctl for specific entries, but I can do that if needed

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Suggestion

Perhaps defer scanning of FUSE-mounts until opened, or handle delayed I/O more gracefully if the user isn't actively opening that folder.

Thanks for building this desktop — Cosmic has been a joy to work with so far. Let me know if I can help test anything further.

[CrazyChaoz]

This happens to me with a fuse-mounted USB disk aswell.

[IamTheFij]

I'm experiencing this too with a USB drive. It takes more than a minute to launch. I'm not sure if it's indexing or something, but it seems like that should not need to be done if I'm not browsing the drive, or could be done in the background, or cached so it doesn't have to happen with every new window.

[jackpot51]

Can you get the filesystem name when you have pcloud mounted from /proc/self/mountinfo?

[WatchMkr]

This may have been fixed with #958. Is anyone still experiencing this issue?