Hello I'm new on the forum. English it's not my native language so sorry for any mistake in gramma . I use Krita for 2 months, but from a few days zooming isn't smooth, its take really long before screen get focus and often I must click on scroll bar to fix it. It's really annoying. My PC isn't powerfull but earlier I hadn't this problem. I got v. 2.9.11.0 and Windows 10 64bit. I tried 64bit and 32bit and it's the same problem. Please help me, because I really like Krita and there is no better free digital painting program for me

Make sure OpenGL is enabled in the settings dialog under Display.