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OpenClaw chat interface causes very high WindowServer CPU on Intel Retina iMac #64443
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P2Normal backlog priority with limited blast radius.Normal backlog priority with limited blast radius.clawsweeper:needs-infoClawSweeper needs more reporter information before it can verify this issue.ClawSweeper needs more reporter information before it can verify this issue.clawsweeper:needs-maintainer-reviewClawSweeper marked this issue as needing maintainer review before automation.ClawSweeper marked this issue as needing maintainer review before automation.clawsweeper:needs-product-decisionClawSweeper marked this issue as needing a product or behavior decision.ClawSweeper marked this issue as needing a product or behavior decision.clawsweeper:no-new-fix-prClawSweeper does not recommend queueing a new automated fix PR for this issue.ClawSweeper does not recommend queueing a new automated fix PR for this issue.issue-rating: 🦐 gold shrimpDecent issue quality, but reproduction details are still incomplete.Decent issue quality, but reproduction details are still incomplete.staleMarked as stale due to inactivityMarked as stale due to inactivity
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P2Normal backlog priority with limited blast radius.Normal backlog priority with limited blast radius.clawsweeper:needs-infoClawSweeper needs more reporter information before it can verify this issue.ClawSweeper needs more reporter information before it can verify this issue.clawsweeper:needs-maintainer-reviewClawSweeper marked this issue as needing maintainer review before automation.ClawSweeper marked this issue as needing maintainer review before automation.clawsweeper:needs-product-decisionClawSweeper marked this issue as needing a product or behavior decision.ClawSweeper marked this issue as needing a product or behavior decision.clawsweeper:no-new-fix-prClawSweeper does not recommend queueing a new automated fix PR for this issue.ClawSweeper does not recommend queueing a new automated fix PR for this issue.issue-rating: 🦐 gold shrimpDecent issue quality, but reproduction details are still incomplete.Decent issue quality, but reproduction details are still incomplete.staleMarked as stale due to inactivityMarked as stale due to inactivity
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Summary
On my Mac, the OpenClaw chat interface appears to trigger extremely high WindowServer CPU usage and makes the whole system feel slow. The issue seems tied to the OpenClaw UI being visible on screen, not just the process running in the background.
Environment
Observed behavior
Measurements
When OpenClaw chat window was visible:
After hiding OpenClaw:
Conclusion / suspicion
This looks like a UI rendering/compositing issue in the OpenClaw chat interface, rather than:
Because the problem changes sharply when the OpenClaw window is hidden, it seems specifically related to rendering the visible chat UI.
How to reproduce
topNotes
This may be more visible on older Intel Macs with high-resolution Retina displays, especially OpenCore-enabled setups, but the behavior still seems like an app-side rendering problem because the difference between visible and hidden state is so large.