[BUG] Version 2.0.61 is extremely slow and causes rapid, excessive token consumption/rate limits

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?

After updating to claude-code version 2.0.61, the tool's performance has degraded significantly compared to version 2.0.56. The current version exhibits extremely high token usage for simple tasks, leading to the exhaustion of usage limits (rate limits) within minutes of starting a session (e.g., 15 minutes). Furthermore, the quality of the generated output ("export") is poor and often not usable, making the process inefficient and costly. This issue has rendered the current version practically unusable for my standard workflow.
These threads investigate recent Claude Code updates that allegedly decrease performance, increase token usage, and introduce new limitations:

What Should Happen?

Expected Behavior
I expect Claude Code to perform tasks with reasonable speed and token efficiency, similar to version 2.0.56. Usage limits should be hit only after substantial, high-quality work has been performed, not within minutes of a session start.
Current Behavior
Rapid Token Consumption: The tool burns through tokens at an unprecedented rate. My weekly/daily quota is depleted in approximately 15 minutes of use.
Poor Output Quality: The output (code, plan) often lacks quality and requires significant manual intervention, leading to wasted tokens on rework.
Performance Issues: The tool feels slow and unresponsive, negatively impacting the development workflow.
Usage Discrepancy: The reported token usage seems inflated compared to my actual activity and previous versions' consumption patterns.

Error Messages/Logs

Steps to Reproduce

⎿  Limit reached · resets 5pm (Asia/Dubai) · /upgrade to Max or turn on /extra-usage
/upgrade to increase your usage limit.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.56

Claude Code Version

2.0.61

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_