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Severe sluggishness in OpenCode Desktop on Windows (even with OpenCode Go) #39251
Description
Description
I am experiencing severe, unusable sluggishness when using OpenCode on Windows. The extreme lag occurs even though I am subscribed to the OpenCode Go API.
Initially, I thought this was a UI rendering issue in the Desktop app, but I have confirmed that the OpenCode CLI is equally slow. This suggests the bottleneck is at the engine level (possibly file I/O indexing loops or network/proxy timeouts), rather than just the DOM rendering.
I have already tried the following without success:
- Completely uninstalled and reinstalled the application multiple times.
- Deleted local session caches and storage (
%USERPROFILE%\.local\share\opencode). - Tested the CLI directly.
Steps to Reproduce
- Open Opencode
- in the chat window type anything it takes 1-2min to Thinking to come
- Thinking takes another 1-2min to respond
Expected Behavior
OpenCode Desktop and CLI should remain responsive, and OpenCode Go API requests should process quickly without freezing the application or terminal.
Actual Behavior
The application and CLI are extremely slow, laggy, and unresponsive, making it practically unusable.
System Information
- OS: Windows [ 11]
- Subscription Type: OpenCode Go
- Hardware Specs: [32GB RAM, Ryzen 5000 processor]
- Antivirus/Proxy: [Default Windows Defender, No VPN / Company VPN]
Additional Context
Since deleting .local/share/opencode and trying the CLI didn't resolve the lag, the issue seems to persist independently of the desktop UI's cache or rendering engine.
Activity
github-actions commentedon Jul 28, 2026
This issue doesn't fully meet our contributing guidelines.
What needs to be fixed:
Please edit this issue to address the above within 2 hours, or it will be automatically closed.
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praveen631264 commentedon Jul 28, 2026
opencode-debug-20260728T032635.zip
github-actions commentedon Jul 28, 2026
Thank you for updating the issue with all the details! Your bug report now includes a clear description, steps to reproduce, expected/actual behavior, and system information. We appreciate you taking the time to provide that context.
github-actions commentedon Sep 27, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.