I am completely desperate.
I have complete horror with raster brushes in Affinity Photo.
Brush preview is very slow and brush painting takes a very long delay.
However, problems only with the Intensity brush. A round brush works lag-free at any size.
Disabling brush preview in settings does not solve the problem.
Second problem. The Accumulation brush option works like Flow. Although previously the Accumulation option worked like Opacity.
It is absolutely impossible to work!
Lag brush.mp4
Not opacity correct.mp4