Could anybody tell me how the transclustion work in background, say there's a Page One with 9 other long pages with just a small portion of transclustion content in each of them, will opening Page One also opens ALL content of those long pages instead of just the transclution portions in background, which literally means opening 10 full long pages at once, thus heavily impact performances (specially for tablet users) and make the edits slow to react?
Thanks!