I have big problems with both AD (also the latest Beta) & AP: I get very jagged/angular lines, especially when drawing quickly. It seems the digitizer can not keep up with the stroke. I made a screenshot in AD. It seems to occur more with the pixel brushes. The problem is visible in any brush I pick. see screenshot
I am working with the last Version of El Capitan. I tried the latest Wacom driver, and also an older one - no difference.
I have no Problem