[MlMt] Can't disable "Organise by Thread".

[Scott]

Hi,

One massive performance drag on MailMate that I've noticed is that if 
"Organise by Thread" is enabled that searching for messages is painfully 
slow -- beachball and 20-30 seconds or more before any results come 
back.

I have over 500K messages, but, very fast RAID SSD and more than enough 
RAM (240G).

The issue is no doubt the sheer message quantity that MailMate tries to 
parse and find messages that are in the same thread.

So, for the last few years I've ensured that View -> Organise by Thread 
was disabled.

However, with version Version 1.14 (5755) (Big Sur), the "All Messages" 
Mailbox, which is the default for searching, ALWAYS has message 
threading enforced, even though the menu toggle is disabled.

Is this a bug, or does someone have a workaround?

Feels like a bug...

Thanks,

Scott