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Tab switching becomes sluggish for WSL tabs opened via UI #9920
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area:performanceGeneral application performance, responsiveness, and resource usage.General application performance, responsiveness, and resource usage.area:shell-terminalTerminal input/output, shell integration, prompt behavior, and block rendering.Terminal input/output, shell integration, prompt behavior, and block rendering.area:window-tabs-panesWindow, tab, pane, and workspace layout management.Window, tab, pane, and workspace layout management.bugSomething isn't working.Something isn't working.os:windowsWindows-specific behavior, regressions, or requests.Windows-specific behavior, regressions, or requests.ready-to-implementThe issue is ready for implementation work.The issue is ready for implementation work.repro:highThe report includes enough evidence that the issue appears highly reproducible.The report includes enough evidence that the issue appears highly reproducible.triagedIssue has received an initial automated triage pass.Issue has received an initial automated triage pass.
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area:performanceGeneral application performance, responsiveness, and resource usage.General application performance, responsiveness, and resource usage.area:shell-terminalTerminal input/output, shell integration, prompt behavior, and block rendering.Terminal input/output, shell integration, prompt behavior, and block rendering.area:window-tabs-panesWindow, tab, pane, and workspace layout management.Window, tab, pane, and workspace layout management.bugSomething isn't working.Something isn't working.os:windowsWindows-specific behavior, regressions, or requests.Windows-specific behavior, regressions, or requests.ready-to-implementThe issue is ready for implementation work.The issue is ready for implementation work.repro:highThe report includes enough evidence that the issue appears highly reproducible.The report includes enough evidence that the issue appears highly reproducible.triagedIssue has received an initial automated triage pass.Issue has received an initial automated triage pass.
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Describe the bug
I'm currently on windows 11. Whenever I open Warp it starts the terminal session using
powershellby default.Sometimes I need to work on WSL so I enter the environment using
wslcommands. Now if multiple tabs are open in this way where they are either running powershell or wsl via command. The tab switching works fine, without any visible lag.However, if I open new tabs via the topbar icon and selecting the
debiansession (as shown in the image), switching between those tabs feels sluggish. It even sometimes introduce a delay of 1-2 seconds between tab switchingIn the attached video
powershellor opened viawslcommand.debiansession.Video
20260502-1607-14.3183435.mp4
To reproduce
Steps to reproduce
Notice the visible lag on switching the tabs.
Expected behavior
Tab switching should remain smooth and shouldn't give a delay.
Screenshots, videos, and logs
No response
Operating system (OS)
Windows
Operating system and version
Windows 11
Shell Version
GNU Bash 5.2.37
Current Warp version
v0.2026.04.27.15.32.stable_03
Regression
No, this bug or issue has existed throughout my experience using Warp
Recent working Warp date
No response
Additional context
No response
Does this block you from using Warp daily?
No
Is this an issue only in Warp?
Yes, I confirmed that this only happens in Warp, not other terminals.
Warp Internal (ignore): linear-label:b9d78064-c89e-4973-b153-5178a31ee54e
None