Worst performance of AIR for Desktop on PC

Hi,

I've been using AIR for mostly developing Android projects for my clients recently. And so far it's been pretty good for that.

I have noticed before and specifically with my current project, which is also simple branded Android app for a client, the performence of AIR on Desktop is worst of all my Android devices. When testing the app on PC, (ctrl + enter in Flash Pro) when simple animations starts, AIR takes 100% CPU on all cores on my i5 Dell with Intel HD4000 and Nvidia GF630M.

I was expecting it to run supper smooth on PC, while surprisingly, the app performs smooth on almost 3 years old Samsung Galaxy S2, then Galaxy Tab2, then chinese tab, and lastly comes PC, performace wise. For mobile, I have set the app to use GPU, and while testing on PC, I have tried all the "Render mode" options, but performance is exactly same.

I am not using Stage3D/Starling. It's just classic Flash, with timeline animations, and AS3 document class to make it all interactive.

Is it a must to use Stage3D/Starling combo to get same performance as on mobile, even for classic timeline style apps?

I thought Flash was getting improved on PC the most, but it feels like other way around 😕😕

// chall3ng3r //