Thunderbird - something in last update (128.4.3esr (64-bit)) gone wrong

[Doblerc]

I am an user of thunderbird from the early versions, but the last update (128.4.3esr (64-bit)) make thunderbird almost unusable. Every email I open, every email I delete, thunderbird has "to think" something and the app freezes and almost clses, and this is with every email. I don't have time to waste, and make me sad that this happens.

[Dan303]

Same here.  Virtually unusable.
How to I downgrade back one version?

[lizb01]

same here!