I’m currently using an Intuos Pro M and on an iMac 5K and I was getting a ton of lag when the computer was doing intensive things, like rendering. The touch surface worked perfectly fine, but the pen was unusable.

I was able to fix this by downgrading the Wacom Driver to 6.3.37-2. Make sure you uninstall all the old stuff first and restart your machine. Hopefully this helps if you’ve been experiencing similar issues.

I also hope that future updates don’t bring back the lag issues

Written by Matt Haliski
The First of His Name, Consumer of Tacos, Operator of Computers, Mower of Grass, Father of the Unsleeper, King of Bad Function Names, Feeder of AI Overlords.