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Interface instability and slow performance with complex sessions #12078

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Interface instability and slow performance with complex sessions#12078
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rekram1-node
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opentuiThis relates to changes in v1.0, now that opencode uses opentuiperfIndicates a performance issue or need for optimization

Description

@cnyet
cnyet
opened on Feb 4, 2026

Issue Description

The OpenCode development environment is experiencing significant instability when handling moderately complex sessions.

Problems Observed:

  1. Interface becomes disorganized
  2. Content display becomes scrambled
  3. Slow performance when processing complex tasks

Expected Behavior

The interface should remain stable and organized regardless of session complexity, with acceptable response times for complex operations.

Actual Behavior

  • Interface layout becomes chaotic during complex sessions
  • Displayed content is jumbled and difficult to follow
  • Significant slowdown when processing moderately complex tasks

Environment

  • macOS desktop environment
  • Complex session handling scenarios

Additional Context

This instability makes the development environment unreliable for serious development work, especially when working on multi-step projects that require maintaining complex conversation contexts.

Screenshot attached to illustrate the interface issues.

Image

Activity

  1. github-actions
    assigned
    rekram1-node
    on Feb 4, 2026
  2. github-actions
    added
    opentuiThis relates to changes in v1.0, now that opencode uses opentui
    perfIndicates a performance issue or need for optimization
    on Feb 4, 2026

  3. github-actions commented on Feb 4, 2026

    @github-actions
    github-actionsBot
    on Feb 4, 2026 – with GitHub Actions
    Contributor

    This issue might be a duplicate of existing issues. Please check:

    These issues describe similar symptoms of interface instability, display problems, and content rendering issues in complex sessions.

    Feel free to ignore if none of these address your specific case.

  4. cnyet commented on Feb 4, 2026

    @cnyet
    cnyet
    on Feb 4, 2026
    Author

    I apologize for the formatting issues in the original post. As requested, I'm adding the screenshot here. The image file is located at ~/desktop/issues.png on the reporter's machine and shows the interface instability described in the issue.

    Unfortunately, I don't have direct access to upload files to this GitHub issue through the available tools. The reporter will need to manually attach the screenshot file to this issue to properly illustrate the interface problems described.

    The image shows:

    • Interface chaos during complex sessions
    • Content display scrambling
    • Visual evidence of the performance issues mentioned

  5. cnyet commented on Feb 5, 2026

    @cnyet
    cnyet
    on Feb 5, 2026
    Author

    It doesn't still work in v1.1.50.

  6. github-actions commented on Apr 7, 2026

    @github-actions
    github-actionsBot
    on Apr 7, 2026 – with GitHub Actions
    Contributor

    To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.

  7. github-actions
    closed this as completedon Apr 7, 2026
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