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Codex App frequently freezes/stutters on Windows 11 Pro despite sufficient system resources

### What version of the Codex App are you using (From “About Codex” dialog)? Latest Codex App downloaded from the Microsoft Store. ### What subscription do you have? Plus ### What platform is your computer? Windows 11 Pro, x64 CPU: AMD Ryzen 5 5600 RAM: 32 GB ### What issue are you seeing? I frequently experience Codex App freezes, stutters, or severe UI lag on Windows 11 Pro. This happens during normal usage, especially when: running prompts; opening existing/new chat sessions; switching into a conversation that has previous context. The app may become temporarily unresponsive or noticeably slow. This is not a full system freeze — the rest of Windows remains responsive. I checked Windows Task Manager while this happens, and system memory is not close to being fully used. My machine has 32 GB RAM and a Ryzen 5 5600 CPU, so this does not appear to be caused by insufficient hardware resources. Because this is a local desktop app running on a fairly capable machine, I would not expect frequent UI freezes during basic prompt execution or when opening chat records. This seems more likely to be a Codex App performance or optimization issue on Windows. ### What steps can reproduce the bug? Open the Codex App on Windows 11 Pro. Open an existing chat session, especially one with previous context. Run a prompt or continue the conversation. Alternatively, open a new chat record/session. The Codex App frequently becomes slow, freezes briefly, or shows heavy UI lag. This do

Posted by squarepots on Apr 29, 2026, 2:27 PM

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Codex App frequently freezes/stutters on Windows 11 Pro despite sufficient system resources

squarepotsApr 29, 2026, 2:27 PM

### What version of the Codex App are you using (From “About Codex” dialog)? Latest Codex App downloaded from the Microsoft Store. ### What subscription do you have? Plus ### What platform is your computer? Windows 11 Pro, x64 CPU: AMD Ryzen 5 5600 RAM: 32 GB ### What issue are you seeing? I frequently experience Codex App freezes, stutters, or severe UI lag on Windows 11 Pro. This happens during normal usage, especially when: running prompts; opening existing/new chat sessions; switching into a conversation that has previous context. The app may become temporarily unresponsive or noticeably slow. This is not a full system freeze — the rest of Windows remains responsive. I checked Windows Task Manager while this happens, and system memory is not close to being fully used. My machine has 32 GB RAM and a Ryzen 5 5600 CPU, so this does not appear to be caused by insufficient hardware resources. Because this is a local desktop app running on a fairly capable machine, I would not expect frequent UI freezes during basic prompt execution or when opening chat records. This seems more likely to be a Codex App performance or optimization issue on Windows. ### What steps can reproduce the bug? Open the Codex App on Windows 11 Pro. Open an existing chat session, especially one with previous context. Run a prompt or continue the conversation. Alternatively, open a new chat record/session. The Codex App frequently becomes slow, freezes briefly, or shows heavy UI lag. This do

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