Performance issue, about 500ms delay on v4.5.0/win11Canary
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- Dominant language
- C#
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Description
A significant ~500ms delay occurs when triggering the full preview (pressing the spacebar) in v4.5.0.
Reproduction Steps
- Select any file (image, video, text file — all tested)
- Press the spacebar to open the preview window
Expected Behavior (as in v3.4.0)
Preview window opens instantly with no perceptible delay when pressing spacebar.
Actual Behavior (v4.5.0)
Consistent ~500ms lag between pressing spacebar and the preview window appearing (reproducible across all file types).
System Info
Microsoft Windows 11 Pro Insider Preview 10.0.26300 Build 26300
CPU: Intel64 Family 6 Model 154 Stepping 4 GenuineIntel ~1700 Mhz
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the delay by selecting an image, video, or text file and pressing Space on Windows 11, comparing v4.5.0 with v3.4.0; no source file or test is named in the issue. Done means the full preview opens without the reported ~500 ms lag across these file types.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- desktop, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100