More reports :
* https://www.reddit.com/r/Thunderbird/comments/ppnb5g/thunderbird_91_significantly_slower/ * https://bbs.archlinux.org/viewtopic.php?pid=1992824
More reports :
* https:/ /www.reddit. com/r/Thunderbi rd/comments/ ppnb5g/ thunderbird_ 91_significantl y_slower/ /bbs.archlinux. org/viewtopic. php?pid= 1992824
* https:/