Bugzilla

(In reply to NISHI from comment #7)
> (In reply to Nicolas from comment #5)
> > (In reply to NISHI from comment #4)
> > > (In reply to Wayne Mery (:wsmwk) from comment #3)
> > > > Other slowness reports for Big Sur
> > > > * https://www.reddit.com/r/Thunderbird/comments/juuad7/thunderbird_slllllooowwww_on_macos_big_sur/
> > > > * https://support.mozilla.org/en-US/questions/1313747
> > > > * https://support.mozilla.org/en-US/questions/1313845
> > > > 
> > > > hang report https://support.mozilla.org/en-US/questions/1313762 and https://support.mozilla.org/en-US/questions/1313810
> > > 
> > > Thank you.
> > > I think the issue should be set to the highest priority to fix ASAP.
> > 
> > Does not only affect Big Sur, I can confirm most of these issues with Catalina. Something happened in 78, as 77 is reportedly fine.
> 
> Really?
> When I use Catalina, the issue was not reproduced...

I double checked, it seems I was wrong, sorry. I misunderstood and mixed a few issues here. It seems I am only having the extreme lags when scrolling the account pane (left pane). (see https://bugzilla.mozilla.org/show_bug.cgi?id=1677380 )

(In reply to NISHI from comment #7)
> (In reply to Nicolas from comment #5)
> > (In reply to NISHI from comment #4)
> > ...
> > Does not only affect Big Sur, I can confirm most of these issues with Catalina. Something happened in 78, as 77 is reportedly fine.
> 
> Really?
> When I use Catalina, the issue was not reproduced...

I double checked, it seems I was wrong, sorry. I misunderstood and mixed a few issues here. It seems I am only having the extreme lags when scrolling the account pane (left pane). (see bug 1677380 )