Thanks Papa. I downloaded Bane's submod that the OP of that thread you linked mentioned.
Something still just doesn't seem right though. This machine handles lots of modern games no problemo. I play Skyrim and Fallout New Vegas on pretty close to max settings. Even with a lot of the scripts turned off, my turn times by about 1125 vary between 45 seconds (minimum) and a few minutes.
I didn't disable the ones that the setup window were very cautionary about (the economic one and one other one). But it sounds like if you disable those it might handicap the AI pretty badly.
Hope I can figure out something because I don't think I'll be able to play this much if not.
The submod I installed is called "Campaign Script Customization 2.1"
ADDIT what I have disabled:
Bulgarian Uprising
Looting and Siege Scripts
Death Notifications
Support Spawn
Timurid Emergence
Teutonic Order
William Wallce Uprising
Princess Notifications
What I have NOT disabled
Ageing (says it doesn't effect turn time)
Economy Script (says it is a last resort cause it handicaps the AI)
Interactive Events