Photoshop, PaintStorm and other painting software can use the GPU to speed up paint strokes. As much as I love AR5, the Custom Brush is laggy beyond belief, its no good for professional/commercial work on a large canvas.

Here is an example by Borodante from Youtube demonstrating the difference between GPU accelerated and non GPU accelerated brush strokes using PaintStorm (skip to 6:55). The difference is night and day!



Could GPU support be added to AR5? Even if only for the Custom Brush?