I'm making a ship. The ship has to be big. The ship is 130 meters long. With only 15 parts, each time I increase the fuselage size by 1, the game crashes for 20 seconds, opening the dev console, which has another lag spike to close it off. You can't build like that. Only 80 performance cost.
@PlaneFlightX its only during the building process. Runs perfectly in everything but the constructor
Set calculateDrag to false.
If you have just one part set to a ridiculously large size with drag enabled it will cause lag.
Drag can be left enabled on smaller parts.