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Xperf shows shows xul.dll as a culprit for slow Thunderbird

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Orlinbo
Orlinbo
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Hello, On Windows 10 and 11 - and on Linux, Thunderbird is slow with my gmail account. I proceed to see what is the issue and used Xperf (Microsoft's Windows Performance Analyzer). Please see attached image. Hope this helps!

Hello, On Windows 10 and 11 - and on Linux, Thunderbird is slow with my gmail account. I proceed to see what is the issue and used Xperf (Microsoft's Windows Performance Analyzer). Please see attached image. Hope this helps!
已附加屏幕截图

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Wayne Mery
Wayne Mery
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1. Slow at doing what? 2. What's happening in Tools > Activity Manager?