Solution to resolve rendering performance issues on High resolution mobile screens?

Hi,

We are experiencing rendering performance issues when animating our flash (vectorial) content on the newest high resolution mobile screens (like on the Samsung S7) and we are wondering if there is a way to somehow reduce the stage's size (in order to reduce the number of pixels to render) while having our content still fitting the whole screen of the phone.

We tried setting the stage size to half of the screen size and double the size of the content we display but it didn't help, flash still needs to render all those pixels...

We are using render mode DIRECT (can't use GPU because we are using filters, and CPU makes it faster for the S7 but slower for other devices)

StageScaleMode = NO_SCALE

We are using AIR 20.

We tried changing the different StageQuality levels but it didn't really help.

Does anyone know if it is possible to somehow reduce the number of pixels to render while still using the whole screen of the device?

Thank you in advance,

Alexandre