Bug: 4.0版本很卡 ，我是WINDOWS10的系统

[xiupk]

Description

Bug: 4.0版本很卡 ，我是WINDOWS10的系统，工能感觉够用，如果想要被更多人用，优先解决稳定度和流畅度问题。

Steps To Reproduce

Bug: 4.0版本很卡 ，我是WINDOWS10的系统，工能感觉够用，如果想要被更多人用，优先解决稳定度和流畅度问题。

Files Version

4.0.0.0

Windows Version

10.0.19045.6282

User ID

0a00637c-069c-4141-9fde-a8601e8ebaf2

Log File

Bug: 4.0版本很卡 ，我是WINDOWS10的系统，工能感觉够用，如果想要被更多人用，优先解决稳定度和流畅度问题。

[Josh65-2201]

Thanks for the report, please

• Give more detail on what you mean by stuck.
• Add steps to repoduce your issue
• Can you please upload the debug.log file (DON'T copy and paste the text) directly to GitHub (email attachments don't work) . You can get it in Files settings > About > Open log location.

[Star46545]

(This response was generated with AI translation)
I believe the "lag" he mentioned actually refers to performance optimization issues rather than bugs, as I also experienced unsmooth operations. Specific observations are as follows:

• Slow directory list loading speed: When entering a directory containing dozens of items and scrolling rapidly, the loading speed clearly lags behind browsing speed. Mouse hover effects (e.g., the shadow animation of highlighted items) exhibit noticeable latency when moving the cursor across the list.
• Delayed rendering of icons and tags: When quickly scrolling through a directory with many sub-items immediately after opening it, the loading speed of icons, file tags, and other UI elements feels significantly sluggish.
• HDD directory access latency: When browsing directories on mechanical hard drives (HDD), the response delay after double-clicking to enter a folder is visibly longer compared to Windows 10's native File Explorer.
  Note: The first two issues improve substantially after the directory finishes loading.

If logs are still needed, I'll do my best to provide them between September 6th-7th (I'll be returning to school after that =) )

[Josh65-2201]

Based on Google transdalate and DeepL, Edge didn't transalate lag correctly.

Files will have better performance with every update. The file browsing slowdowns mostly are coming from Microsoft WinUI/WinAppSDK, others require big code base improvements that will take time. You can see progress in the linked issue below.

You can try something that might improve it right now

• Turn off Files settings > Files & folders > Calculate folder sizes to reduce CPU usage
• Close Files from the system tray or turn off Files settings > Advanced > Leave app running in the background when the window is closed then close and open Files.

[JTFA]

• lose Files from the system tray or turn o

I also found a low performance problem in the latest version 4.0.11.
For example, when open a folder which contains 1779 items, it cost 7 ~ 8 seconds to load, and during the 8 seconds no operation can be performed:

_2025_10_02_18_33_18_417.mp4