[Bug 1959747]

[Seb45tian]

I am having the same issue with ~25% CPU usage when hovering over the
messages list and from what I can observer this is somehow related to
the HiDPI monitor I am using (27' LG, 4k)?

OS: Fedora 37
TB: 102.9.1
Nvidia 3060Ti + X11 (Also tested this with an AMD RX 580 and X11 and Wayland - same issue)
Ryzen 5 3400G (4 cores/8 threads)
16G Memory

Also recorded a profile: https://share.firefox.dev/3MNOpmA

I have another Fedora 37 system at work (i7-8700 w/ onboard graphics)
and a 1440p monitor and here I have no issues at all. I hope this can be
fixed in the not so far future - TB is really laggy at this point for me
:-/

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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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