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codex - 💡(How to fix) Fix Codex Desktop sluggish after today's update to 26.429.20946 [4 comments, 5 participants]

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openai/codex#20547•Fetched 2026-05-01 05:41:55
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What happened?

After updating Codex Desktop today, May 1, 2026, the app feels noticeably more sluggish than it did before the update. General UI interactions are less responsive, and the regression was apparent immediately after updating.

Before the update, the same app/workflow felt much more responsive on this machine.

Performance trace

I recorded and uploaded a performance trace as instructed by the app:

43b31e53-6359-468e-89ff-a73a240ecf72

Environment

  • Codex Desktop: 26.429.20946 (2312)
  • macOS: 26.4.1 (25E253)
  • Device: MacBook Pro Mac15,8
  • Chip: Apple M3 Max
  • Memory: 64 GB

Expected behavior

Codex Desktop should remain as responsive as it was before the update, especially for normal UI interactions.

Actual behavior

After the latest update, the app feels sluggish during normal use.

Notes

This may be related to other recent Codex Desktop performance reports, but I’m filing this with the uploaded trace ID so the team can inspect the specific capture from this machine.

extent analysis

TL;DR

The performance issue in Codex Desktop after the update may be resolved by investigating the performance trace and potentially rolling back to a previous version or awaiting a patch.

Guidance

  • Review the uploaded performance trace (43b31e53-6359-468e-89ff-a73a240ecf72) to identify specific bottlenecks or areas of slowdown.
  • Compare the current version (26.429.20946) with previous versions to determine if the issue is isolated to this update.
  • Check for any known issues or discussions related to performance regressions in Codex Desktop, especially those mentioning the macOS version (26.4.1) or device specifics (MacBook Pro Mac15,8 with Apple M3 Max chip).
  • Consider reaching out to the Codex Desktop support team for further assistance, providing the trace ID and detailed environment information.

Notes

The solution may depend on the specific findings from the performance trace analysis and any patterns identified in similar reports.

Recommendation

Apply workaround: Given the immediate regression after updating, it might be beneficial to await a patch or a fix from the Codex Desktop team, as rolling back may not be a viable long-term solution and could reintroduce fixed issues from previous versions.

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FAQ

Expected behavior

Codex Desktop should remain as responsive as it was before the update, especially for normal UI interactions.

#api#ssr#orchestration issue#cache issue#memory leak

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