Ive recently installed the latest AF update. Now I'm experiencing shocking lag when using large brush sizes, when | say large, i mean anything above 100 pixels. Its so slow to update its unusable. I also use Krita, which is free. I can use brushes right up to the max 1000 pixels with very litte lag, if any in Krita. I'm sure its not my hardware. My PC spec is resonably decent.... AMD 6 core, 3.9ghz processor, Radeon 4GHz graphics, 16 gig memory and all HD's are SSD. Does anyone know what the problem is?, I've tried all the suggested fixes, but still have this problem. Even tried photoshop, and no lag there either. ps. I use a Huion Q11 K tablet with latest drivers, but its the same with the mouse as well. Thanks