I decided to check them out again, as I couldn’t even remember what my issues with them were when they were new.
Well, now I can say: So slow. It made me think it might be electron, but apparently it’s based on thunderbird, so I guess TB is also slow, or they are doing something wrong.
I'm a long-term TB user. I have noticed fairly severe UI lag in recent releases - say, the last couple of years. E.g. I click on a folder in the left pane, and it takes up to a second for the contents to appear and the folder be highlighted. Not every time, but often enough to cause input mistakes. Other applications running at the same time do not exhibit this lag.
I haven't reported a bug; it's so noticeable, I assume someone else already has.
I never asked for those sqlites, I'm sure they were introduced long after I became dependent on Thunderbird. Nobody ever warned me that I was now a janitor! - I don't think I should need to know about sqlite admin conventions to install and use TBird, and the TBird website doesn't make much noise about it.
TBird seems to propose to compact this folder or that from time to time; so I assume it's looking after that, and my folders are in the sort of compaction ranges I've set.
Dammmit, I had no idea that sqlites were supposed to be vacuumed. I need a robot sqlite vacuuming machine, I'm too old for hard work.
