Dunno but doesnt helps alot for me.
Big Maps in the Endgame are always slow, the Ram is okay when i looked at it. I think its more a CPU Issue, 8-9 KIs wich try to handle a lot of Ships (and the Pathfinding for all Ships) are to much or not?
There is no difference if i set my Settings to Low or High.
Edit: Or not, 20-30% for Sins ...