I revive this thread. As long as I remember, this limits were because of old pcs performance. The more objects, the lower fps. Anyway I have an I5 g630, 4gb ram and a radeon 7700, and I allways get around 100 fps. It's definitely nothing advanced.
I think the problem could be solved with larger obects. For example, instead of putting 4 wall obects, having the ability to put one x4 times larger, so you save obects. Unfortunately this is not actually possible, and could save lot of time and preserve the actual object limit.
Another, important, in my opinion, would be curved objects, so you can make jumps, wall rides, or anything you could imagine, without wasting 209348023 objects on it and destroying suspensions, making the course more "soft", therefore more playlable.
I also agree with the 60 z-factor thing, but imho the previous ones are much more important.
Scawn, let us play with this, please. I have lots of Ideas that I cannot build because the actual editor limitations. This few changes could overcome any limitation.
I beg you :/