Found a way to improve the overall performance of 3DCoat; it is especially visible for paint tools, on my PC, changing the opacity of the layer on 8K texture takes 1/3 sec vs 1.2 sec before the optimization. So painting over 8K tex is smooth and fluent. This will be in 2023.30.

— Andrew Shpagin (@AndrewShpagin) September 16, 2023