Is the blueprint quantity in packages affecting the performa

[shanyiqua]

I've read lately on rail-sim.de that big addon packages in TS2013 can cause the instability of the game. Under "big addon package name" i mean if there are a lot of rolling stock, repaints are in the same package.
Buf if each of the rolling stock/repaints are split to different packages, then it can make the game more stable.
Because the big packages using much memory when it's ticked in the editor at blueprint filters.
However one of the biggest packages is the kuju/railsimulator, barely caused crash for me... Also i don't see significant memory usage increase of the game if i just load a package in blueprint filter.

Any thoughts?