Sid Meier's Civilization V

Sid Meier's Civilization V

R.E.D. Modpack
BKF 29 Jul, 2021 @ 7:54am
Game slows down to a crawl as soon as I am at war with another country
Like unplayable slow and checkboxes for units which I need to confirm before I get on the next round not showing up at all which means I'm stuck at pause mode. I have been using ver. 2.7 and run a Ryzen3600 with 16gigs of RAM and a 1060 6gb at 1080p. What could be the issues? I reinstalled the mod clean and still the same problem occurs.