Yep, I tried altering the GPU settings as well. Still PS hangs every other images when using brushes (mix of regular). I tried with different drawing modes and turning of OpenCL.
I use an Imac Pro with a Radeon Pro Vega 64 16 GB. Never this issue before. I have now reverted back to 22.4.2 and everything is perfect again. The pen tool now draws more steadily and has a thicker drawing line (in blue). Selections appear thicker and the transform tool operates normally again.
I reckon I stay away from updating for the time being.