Brush/Tile Size and quality

With the supplied Art filters, is it possible to to have relatively larger brush strokes while also outputting at higher resolution/quality? when I go from SD to HD or Original, the overall resolution increases but the size of the brush strokes get relatively smaller, which changes the results quite a bit (i.e. with higher resolution there’s a lot more brush strokes).

I have the same Problem especially Mosaic-3 filter perfect at SD size, but if you use the image HD, UHD or even Original Size the brush sizes become so small and there is no effect of Mosaic-3 as it was in SD. How to solve this serious problem? Could you please suggest what to do? I need UHD or Original File output quality, but still need to have the Mosaic-3 filter as it is only achievable for now in SD.

A simple idea is to use the AI super resolution scale up when using SD rendering. Available in the tools menu.