Open LesFerch opened 10 months ago
Had the exact same issue today. I was blaming the antivirus and Windows 11. Uninstalled the AV didn't change. Uninstalled powertoys, my explorer seems faster and previews are immediate. I suspect powertoys explorer extensions to slow down explorer even outside the preview pane.
Microsoft PowerToys version
0.75.1
Installation method
Microsoft Store
Running as admin
Yes
Area(s) with issue?
File Explorer: Preview Pane
Steps to reproduce
Enable File Explorer add-ons Enable Source code files preview Enable Preview pane in Explorer Browse a folder and select a TXT file
Instead of the usual instantaneous preview, there is a green "Loading" progress bar for a second or two and then the file is previewed. This occurs even if it's only a 1 character test file. It's orders of magnitude slower than the default preview. It may be less noticeable on high-end rigs, but is painful on a basic laptop, like mine.
Theory: The delay is happening because the source code previewer is checking the file contents to determine what syntax colorizer to use.
Suggestion: Do not handle TXT files. Let Explorer's default previewer handle them. If a file has a TXT extension, it's perfectly OK to display it as plain uncolored text, regardless of content.
Alternative solution: Replace the preview code with faster code. There really should be no delay. For example, I use Notepad2, which syntax highlights all source code, and it's instantaneous on my laptop.
✔️ Expected Behavior
Instant preview of text files.
❌ Actual Behavior
Slow preview of text files.
Other Software
No response