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Resizing window lags when history buffer has lots of lines #15964

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#15701
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Resizing window lags when history buffer has lots of lines#15964
#15701
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Area-OutputRelated to output processing (inserting text into buffer, retrieving buffer text, etc.)In-PRThis issue has a related PRIssue-BugIt either shouldn't be doing this or needs an investigation.Needs-Tag-FixDoesn't match tag requirementsPriority-3A description (P3)Product-TerminalThe new Windows Terminal.
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Description

@mailinglists35
mailinglists35
opened on Sep 13, 2023

Windows Terminal version

1.18.1462.0

Windows build number

10.0.22621.1848

Other Software

No response

Steps to reproduce

Settings - Defaults - Advanced - History size - 999999
Open powershell tab
issue ls -r or similar to fill the history buffer (not necessarily fill up, just ensure there are plenty of lines)
Click and drag the lower edge of the window to resize it

Expected Behavior

smooth movement

Actual Behavior

laggy movement like I have a 486 computer

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    Area-OutputRelated to output processing (inserting text into buffer, retrieving buffer text, etc.)In-PRThis issue has a related PRIssue-BugIt either shouldn't be doing this or needs an investigation.Needs-Tag-FixDoesn't match tag requirementsPriority-3A description (P3)Product-TerminalThe new Windows Terminal.

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