Using the `/side` feature is very slow

[demyte]

What version of the Codex App are you using (From “About Codex” dialog)?

Version 26.623.42026 • Released 27 June 2026

What subscription do you have?

Pro

What platform is your computer?

Microsoft Windows NT 10.0.26300.0 x64

What issue are you seeing?

Using the /side command takes a long time to spin up a side chat

What steps can reproduce the bug?

Uploaded performance trace: 019f00f9-1c9e-7a20-a592-58196a186fd9

What is the expected behavior?

No response

Additional information

No response