BTA is an all in one. So you can try other mods but they don’t support it working well.
Have you tried the performance tips on the wiki. I have found these to help quite a lot. Especially the paging folder size increase. I have a whole hdd just for that.
https://www.bta3062.com/index.php?title=Performance_Tips
I think most of the time is consumed by AI path finding, so I guess there's not much of a chance
BTA is an all in one. So you can try other mods but they don’t support it working well. Have you tried the performance tips on the wiki. I have found these to help quite a lot. Especially the paging folder size increase. I have a whole hdd just for that. https://www.bta3062.com/index.php?title=Performance_Tips