If you have a file named RimWorld.v1.4.3558.zip , please be aware of the following:
: Includes optimizations for pawn pathfinding and social interaction processing, which often cause "TPS" (ticks per second) drops in late-game colonies. Bug Fixes : RimWorld.v1.4.3558.zip
Resolved issues where certain xenogerm genes from the Biotech DLC were not applying correctly. If you have a file named RimWorld