Performance problems

Performance problems

My major problem with thunderbird is that it is sooo slow.
In my opinion they screwed up the index <-> mbox thingy, they should have gone with a slimmer and simpler "handcrafted" index format that is fast.
The .msf files now are a joke, they take many megabytes per folder in my setup and feels very heavy handed.
I've done indexes like this before, and it's vital to select the minimum fields possible to be able to display the folder and as slim as possible to make it work fast.
It takes many seconds to open an folder with 100K mails on my dual core amd64 x2 with a fast sata disk, that's just bad.
I think long time netscape hacker Jamie Zawinski had an discussion about this years ago, but it fell to deaf ears.

I hope they'll do someting about this soon, or I'll be forced to swap mail app _again_ :/