( this was solved, problem was parts that where 40 blocks long, I had time basically start over )

! ! ! ! ! ! ( please read whole form its not the long and I need help I can't even finsh my plane ) ! ! ! ! ! !

I'm working on a new plane that I have been working on since yesterday, but while I went to sleep simple planes was kept in the background on my phone ( wasn't running since task manager killed it ) but in the background.
.
.
But the next day I'm working on it and if i try to use overload, fine tuner or press airplane stats or try to save it or play it or freezes for 20 to 40 seconds ( even if i just try to change a number using the built in fine tuner or the mod it still freezes for 20 to 40 seconds) before it starts doing anything. but once it loads and I'm flying it has no problems. I tried removing mods nothing.
.
.
.
no my phone isn't that bad if that was the problem I would be lagging while flying.
.
I tried clearing cache, data, rebooting my phone, moving things out of the simple planes folder and nothing worked
.
I deleted every thing and play there's no problem, added my mode back and everything
.
.
but if I load the plane again it does what I mentioned above again .............

I need help...........