i use 5x, UCP and Unofficial Code patch installed correctly and everything is fine until the very very late game

i like to play on impossible and go hard into tech so i can overpower the AIs when i have Titans/Dreadnoughts and Deathstar but in really battles with like 20k-50k the fight laggs quite hard and often times crahes repeatedly even thou i dont zoom in at all.

this happens on my old and my new computer which is quite fast

PS: besides this bug whats also nasty is that Dreadnaughts always are placed in front of tankier ships like titans and the deathstar, it makes no sense for them to rush in first and this should be adressed coz it is very nasty to manually rearrange and move the titans to the front first every battle