[BUG] Agents in any model is very slow when using Bedrock

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Im currently running Claude Code using Bedrock and running Fable and OPUS 5 model, only the main agents is working properly with correct speed. All the subagents that it spins up it takes hrs to complete. At one instance I saw it running for 57 minutes for 17K token and then again stop. It keeps getting stuck on thinking and in two agents I saw it returning Api error. From the screenshots below you can see it is taking hours even when context is not that big. I tried running the same using subscription plan and this was not an issue with that. Are you deliberately slowing requests coming from bedrock?

<img width="1025" height="97" alt="Image" src="https://github.com/user-attachments/assets/ff4ea19e-1e62-476d-b508-7b598a6f3b08" />

What Should Happen?

Please Speed up claude code when using Bedrock.

Error Messages/Logs

Steps to Reproduce

Use bedrock and try to run subagents in that.

Claude Model

_No response_

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.224

Platform

AWS Bedrock

Operating System

macOS

Terminal/Shell

Warp

Additional Information

_No response_