Reduce excess processing (that leads to lagging) by adding Option Setting for "Static 2D Background"
Game lags too much (iPad 4th Gen, which was before the iPad Air's), which happens even more against certain opponents (HowardDuck comes to mind), certain fight scenes with heavy animation, and when there are a lot of node buffs, etc, that requires extra processing. Also seems to lag on the very first hit nowadays almost all the time, so you have to wait and see if you actually parried the opponent at the very beginning.
** ONE SOLUTION to lagging would be having an Option Setting that would Turn Off all the background scene animation and 3D relative effects, and just have the background scene be a static field (although it would still pan left/right as you move backward/forward).
You could turn off the effects that make it 3D looking with all the changes to perception, as well as the flying ships, scrolling "wanted" signs for rocket/groot, fluids bubbling in the laboratory, etc.
I'm sure this would greatly help on older devices that don't have the processing speed to keep up with all the "bells and whistles" during the fights. Thanks.