[Bug 1959747]

[Vseerror-i]

(In reply to Frank from comment #64)
> Here is a more recent profile with TB 120b5 in case it helps. As before, the profile was taken while moving the mouse cursor vertically across the message pane (no clicking or any other action): https://share.firefox.dev/3QzNmHl

The expert julienw on matrix writes, " the DisplayList operation seems
to take long but I don't know why"

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https://bugs.launchpad.net/bugs/1959747

Title:
  [upstream] Very high CPU and slow responsiveness in Thunderbird 91-102

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