I just updated to the latest Thunderbird for Mac as of today (128.6.1esr) and unfortunately still have the same problem that first started with the last update: whenever I get a new email, I click on it, and it takes a full 6 or 7 seconds to display the email in the bottom preview pane. This used to be INSTANT and now it takes an extremely long period of time when you consider how many new emails a person gets overnight. The cursor actually beachballs literally every time.
Thunderbird does not do this on version 128.5.2esr - that version is quick and snappy no matter what I do.
