Fix plz I cant pass any missions

Please fix your AI taking forever to end there turn. I end up Quiting missions and losing all my ex for my battle brothers and now its to the point where I cant even progress the story pls I paid for this game instead of getting it when it was free I thought Id support you guys but seeing this problem for a long time and am kinda regretting this buy

Draftyowl about Warhammer 40,000: Deathwatch - Tyranid Invasion, v1.3