I've been struggling with this problem forever and it's really frustrating.
first, I'd like to say that I bought this computer specifically so I could paint fast.
It has a
i7-2630QM CPU @ 2.00GHz (8 CPus)
12 GB of RAM
NVIDIA GeForce GTX 560M with 4GB of video memory
I've updated my video card numerous times.
I've just been using the hard round because it's a lot faster than a chalk - and it's fast at first. Until about an hour into the painting and my brush strokes start chugging along.
I thought it might help to restart the program but I'm realizing now when I get to a level of paint on the page (I usually paint in one layer) it's slow and no restarting will help.
I set performance to use all of the memory it needs (100 percent, 3255mb of the graphics memory)
History states is at 20, Cache levels is at 8
I have Open GL drawing enabled -
The paintings I've been drawing in are larger - 300dpi at 6 inch by 4 inch.
But with the specs I like had I figured my computer could paint at that resolution?
What is going on??!? So frustrated!!!