THIS IS A SERIOUS ISSUE - IF IT ISN'T FIXED PRETTY QUICK I'M PORTING OUT - AFTER USING TB FOR 8 YEARS... The all-new-all-singing-and-dancing Supernova grinds to a halt. There is a thread here: https://connect.mozilla.org/t5/discussions/thunderbird-is-extremely-slow-after-the-new-ui-update-115-4-2/m-p/48006#M17136 that is addressing the complaints of some users but I see nothing by way of developers engaging this issue (or even being aware). To set the context I posted this (below) at the end of last year. Do any of the new TB development team actually look at these comments? You have a BIG problem here ladies and gentlemen. You just made your shiny new product fall flat on its face. ~~~ ‎12-27-2023 02:56 PM So time to cut to the chase. (the following are descriptions of context, showing the latency) 1. Left-click on a folder in the left pane; right-click to show secondary floater menu; select "mark folder read": 5 seconds 2. Left click on left pane/folder expand/contract arrow: 5 - 10 secs (varies) 3. Left click on left pane (waiting for right-hand pane to show folder contents: 5 seconds 4. (when viewing right-hand pane: folder contents: 600 messages in the folder) using slidebar to track up and down the folder, so going from "right at the bottom" to "right at the top": 5 seconds 5. Left-click on a folder in the left pane; right-click to show secondary floater menu; select "create new folder": 8 seconds 6. Click on search bar, enter text (type-ahead): 8 seconds for text to appear and search to start 7. Right-click on trash in the left pane (to select "empty trash" (17 messages)): 10 seconds to display 8. On closing always get the pop-up saying "unresponsive window, do you want to close" - but then always eventually gets there and closes. "5 seconds" appears to be a regular occurrence. Issue with servicing the key-press and mouse click queue? In other respects this wonderful new interface is an unmitigated disaster and whoever decided that it was ok to release TB115 in this state should be SHOT !!! ~~~ (and to add insult to injury:) 9. click "help" tab / "about": 9 seconds to display the pop-up ... ~~~ So whats your plan, then? ~~~ Misterjat ‎12-30-2023 02:15 AM Not sure they have one. Do they even bother to read these comments?