Metalstorm:aces is needlessly difficult

Enemy planes are too fast and turn too hard, campaign is near impossible to complete without paying, enemy cannons are OP, quick strike is impossible in later levels like Frostbite, unnecessary wait time for upgrades that do nothing, leveling system does nothing whatsoever.

Why cant Aces be more like Online?

Whyshouldicareaboutanickname about MetalStorm: Online