leoparduniverse7 The laundry list is determined by Maxis developers; it's not something for which you can request additions. And this doesn't actually sound like a bug so much as design you don't like.
Loading a save has multiple components. The graphics rendering is only part; the rest involves pulling data from the drive(s) and loading it into memory. If your processor is much more capable than your graphics card or chip, then the CPU could have finished its tasks before the GPU. And given that the general goal is to have shorter loading times, I can see how the game might be designed to allow the user to play as soon as the lot is in fact playable, even if the graphics rendering is still catching up.
I'm honestly not sure what you'd have the game do here. If you don't want to play until every object is rendered, then don't, just wait for it, pretend you're still stuck on a loading screen. People who don't care as much about this can play right away instead of being forced to wait too.
If you want object loading to happen faster, get a faster GPU or figure out why yours isn't performing as expected. I don't mean to be flippant, but this isn't a problem on higher-end hardware, provided there aren't an excessive number of objects on the lot. So it's not simply the fault of the game engine, although the engine could certainly have at least something to do with it.
