Well, I still can't find what recently changed to make Aces High - and nothing else - perform differently (i.e., worse) on my computer.
It's a bit frustrating to be told that it could be *anything*. Hard to know where to look, armed with so little information.
All I can do to narrow it down is to tell you what triggers the issue.
If the computer takes too long to allocate the resources the game needs, it will trigger it.
What can cause a computer to take too long is varied. Obviously, if the game settings are such that there are simply not enough physical resources it will take too long.
If the CPU is too busy to give the game its undivided attention, that can cause it.
If the video card is too busy to give its undivided attention to the game, that can cause it.
If it takes a really long time to get the data from the server, it could trigger it as the game code has no way of knowing the issue is network related.
As to what can cause either to be too busy, is where things get gray. Every computer is different. It is impossible to duplicate the circumstances of every computer configuration, which only leaves me the option to point out what can trigger certain events and hope that triggers something in the users thought process which will lead to the source of the issue.