openclaw - 💡(How to fix) Fix [Bug]: Webchat pre-processing latency [1 participants]

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openclaw/openclaw#60575Fetched 2026-04-08 02:49:33
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Webchat messages suffer from 8-12 seconds of pre-processing latency after gateway restart.

Root Cause

Webchat messages suffer from 8-12 seconds of pre-processing latency after gateway restart.

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Bug type

Regression (worked before, now fails)

Beta release blocker

No

Summary

Webchat messages suffer from 8-12 seconds of pre-processing latency after gateway restart.

Steps to reproduce

  1. Start/restart the OpenClaw gateway.
  2. Send a message via webchat (fast).
  3. Send another message (8-12s delay).

Expected behavior

Consistent low latency (<2s) for all messages as in v2026.2.26.

Actual behavior

Latency accumulates and reaches 8-12s after the first message.

OpenClaw version

v2026.4.2

Operating system

WSL2 (Windows)

Model

MiniMax-M2.7

Provider / routing chain

webchat -> openclaw

Impact and severity

High (significant delay before LLM starts generating tokens)

Logs, screenshots, and evidence

Detailed evidence can be found in issue #60548.

extent analysis

TL;DR

Investigate the OpenClaw gateway restart process to identify the cause of the pre-processing latency.

Guidance

  • Review the changes between versions v2026.2.26 and v2026.4.2 to determine if any updates could be contributing to the latency issue.
  • Check the gateway's configuration and settings to ensure that there are no misconfigurations or changes that could be causing the delay.
  • Inspect the logs and evidence provided in issue #60548 to gain a better understanding of the latency issue and potential causes.
  • Consider testing the webchat functionality with a different model or provider to isolate the issue and determine if it's specific to the MiniMax-M2.7 model or the OpenClaw gateway.

Example

No specific code snippet can be provided without more information about the OpenClaw gateway and its configuration.

Notes

The latency issue may be specific to the WSL2 operating system or the MiniMax-M2.7 model, so testing with different environments or models may be necessary to determine the root cause.

Recommendation

Apply a workaround by investigating alternative gateway restart procedures or configurations that may reduce the pre-processing latency, as upgrading to a fixed version is not currently an option.

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FAQ

Expected behavior

Consistent low latency (<2s) for all messages as in v2026.2.26.

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openclaw - 💡(How to fix) Fix [Bug]: Webchat pre-processing latency [1 participants]