Ok. Here I can conclude that the iPad version doesn't exactly matter. I've heard that iPad 4's and iPad minis are glitchy and they are quite modern.
Therefore it must be hopscotch the app. On my iPad mini 1 hopscotch is as slow as a dead tortoise but other apps are fine. Though on newer devices hopscotch is much faster but I am seeking an enlargement in a file size (causing bugs on projects) My biggest project (Jedi adventures) has increased in a lag form, when I posted the game it was much faster than now.
It can typically be considered that the projects that come out in this time period and get lots of plays may be more affected than projects that came out over a year ago.
@Thinbuffalo, is it true that the iPad version doesn't matter, it's rather the hopscotch app causing glitches?