Before I started with PC, I left the same comment on Play about scale/proportion being off roughly 30%. (Will remove since I found this forum)
It's not just size, it's mass also.
I don't know if it is a problem with graphic scaling or mass scaling, but it's a math issue somewhere in the code. I don't know the math you folks know, so I'll just mention it.
@Nhonho It doesn't hurt to leave this here for others having a similar issue to find and learn from (you're not the first to make this mistake).