When interacting with a painting type application in MacOS we find that in some cases its better to run in a simple touch mode where one touch is translated into mouse events and subsequent touches are ignored.
To run in this mode you can define the target painting app in the 'Painting Application' list in the Other Settings dialog and when the application becomes focused / topmost on the desktop Gestures will automatically adjust its setting accordingly.
Please note that painting apps reliant on positional touch data may not work as expected as described in the important notes section.