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I've noticed that when I increase my brush size to fill a canvas (aiming to create textured backgrounds prior to creating my work), there is a severe lag when I make strokes. Often times, when I make several passes with a large brush, I'm left waiting for AP to catch up.

 

FYI, I have a 1 TB SSD & 16 GB of RAM, and an i5 processor on a mid-2012 Macbook Pro. Idk if that information will help in diagnosing the problem or not.

 

Is there any way to tinker with the performance setting to resolve this issue, while still maintaining hi-res quality of the brushes?

 

Thanks.  

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The simpler the brush, the faster it will draw. You can "optimize" a brush by increasing the spacing "parameter" this is valid in most graphic software, other than that not much; the rest is hardware and software limit.

 

You can switch to nearest neighbour, disable dither & clipping, fastest retina rendering in performance options and disable "show brush preview" in UI to gain some little extra speed.


System specs: Win 8.1 Pro 64bit | AMD PhenomII X6 1055T @ 3.0Ghz | 16GB DDR3 @ 1600Mhz | WD10EZEX | GTX 960 4GB | Wacom CTL-672

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