Hi 1KidC,
Am pretty sure an Ipad-2 will run MF4.5.
It may be a bit laggy, but usable. My Ipad-3 runs at similar speed to the Ipad-2.
My Ipad Air and Air-2s are definitely faster.
I suggest you try it. If needed, you can go back to Classic.
To simplify what you see -
one way to do this is set access limits.
By default, when you hit L/R, a window pops up with all fourteen Auxes, Matrix outs, Groups, DCAs, etc.
On your Ipad you can block all the stuff you don't need, vastly simplifying what you actually see.
For instance, for tonight's show, all I need to see is five auxes and one DCA. So all the others will be blocked in the section where one sets access limits.
Thanks and good health, Weogo