Hey guys, after updating to PS CC2019 I'm having a ton of issues with the brush tool.
1. After I make multiple consecutive brush strokes photoshop cant seem to quite keep up, if I make 5 brush strokes in rapid succession the first one may appear in real time but they rapidly begin to fall behind where my cursor actually is. This does not happen in cc2018 where i'm using the exact same brush on the same document size. These are simple round brushes on small documents, I'm really not pushing it. (This may have improved with a preference reset its hard to tell)
2. It seems to occasionally (every 3rd to 5th input) skip a brushstroke, making only a single low opacity circle or no mark at all without drawing the rest of the line. I can scrub the cursor across the document at full pressure and it makes no mark till I lift the pen off the tablet to make a new mark.
3. If I hold a brushstroke for any more than a second or two I get a busy cursor (a ring of rotating dots) this happens no matter if Im using my mouse or the wacom. It no longer allows me to see the brush tip shape but will continue to make the brush stroke just fine. This happens no matter how small the document or how simple the brush.
To clarify I have reset my photoshop preferences repeatedly, made sure I have updated wacom drivers. These seem explicitly connected to 2019s brush engine because I can compare them side by side and not have any of these problems in 2018. Also their performance preferences are set up identically but I have tried increasing them in 2019 and it seems to make no impact. Thanks for the help!
iMac (Retina 5K, 27-inch, Late 2014) macOS Mojave 10.14
I've been having this issue recently and it's been driving me nuts. I tried turning off the rulers as some others have suggested which seemed to improve things but didn't solve it completely. I continued to experiement and I think I've finally solved it (I'm keeping my fingers crossed!) by doing the following:
Preferences > Performance > Graphics Processor Settings > Advanced Settings ... and change the Drawing mode drop down to "Basic".