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openclaw - 💡(How to fix) Fix [Bug]: openclaw very slow！From input to response, it takes 5 minutes or even longer.

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2026.3.13 to 2026.5.7

Root Cause

2026.3.13 to 2026.5.7

Code Example

20:13:16 [diagnostic] liveness warning: reasons=event_loop_delay interval=146s eventLoopDelayP99Ms=527.2 eventLoopDelayMaxMs=120259.1 eventLoopUtilization=0.9 cpuCoreRatio=0.846 active=1 waiting=0 queued=1 recentPhases=post-attach.update-sentinel:1ms,sidecars.subagent-recovery:33ms,sidecars.session-locks:40ms,sidecars.main-session-recovery:914ms,sidecars.model-prewarm:5057ms,post-ready.maintenance:8242ms work=[active=agent:main:main(processing,q=1,age=125s) queued=agent:main:main(processing,q=1,age=125s)] 20:13:16 [diagnostic] stuck session: sessionId=unknown sessionKey=agent:main:main state=processing age=125s queueDepth=1 reason=queued_work_without_active_run classification=stale_session_state recovery=checking 20:13:25 [diagnostic] stuck session recovery no-op: reason=no_active_work action=none sessionId=unknown sessionKey=agent:main:main age=125s queueDepth=1 lane=session:agent:main:main
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Bug type

Regression (worked before, now fails)

Beta release blocker

No

Summary

2026.3.13 to 2026.5.7

Steps to reproduce

openclaw.json

Expected behavior

<img width="1063" height="1152" alt="Image" src="https://github.com/user-attachments/assets/1ccb35f2-3916-48da-a20b-94ea1000cd65" />

Actual behavior

From input to response, it takes 5 minutes or even longer.

OpenClaw version

2026.5.7

Operating system

window 10

Install method

npm global

Model

DeepSeek-V4-Flash

Provider / routing chain

openclaw-> gateway

Additional provider/model setup details

No response

Logs, screenshots, and evidence

20:13:16 [diagnostic] liveness warning: reasons=event_loop_delay interval=146s eventLoopDelayP99Ms=527.2 eventLoopDelayMaxMs=120259.1 eventLoopUtilization=0.9 cpuCoreRatio=0.846 active=1 waiting=0 queued=1 recentPhases=post-attach.update-sentinel:1ms,sidecars.subagent-recovery:33ms,sidecars.session-locks:40ms,sidecars.main-session-recovery:914ms,sidecars.model-prewarm:5057ms,post-ready.maintenance:8242ms work=[active=agent:main:main(processing,q=1,age=125s) queued=agent:main:main(processing,q=1,age=125s)] 20:13:16 [diagnostic] stuck session: sessionId=unknown sessionKey=agent:main:main state=processing age=125s queueDepth=1 reason=queued_work_without_active_run classification=stale_session_state recovery=checking 20:13:25 [diagnostic] stuck session recovery no-op: reason=no_active_work action=none sessionId=unknown sessionKey=agent:main:main age=125s queueDepth=1 lane=session:agent:main:main

Impact and severity

No response

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FAQ

Expected behavior

<img width="1063" height="1152" alt="Image" src="https://github.com/user-attachments/assets/1ccb35f2-3916-48da-a20b-94ea1000cd65" />
#prompt issue#agent setup#task chaining#parallel task#integration issue

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openclaw - 💡(How to fix) Fix [Bug]: openclaw very slow！From input to response, it takes 5 minutes or even longer.