Hi guys,

I'm having a terrible delay with all tools when zooming to a factor of more than 400% on the following file:

https://app.box.com/s/a4l29he6jm5l6meljem9iczh8p8dxhrh

OpenGL is active and my GPU is a nvidia Titan X with 12Gb, on a 4k monitor.

I've tried changing all OpenGL filter types and turning off texture buffer.

Also, when changing filter types Krita Crashes.

Up to 400% it's perfectly workable, but zooming after this point with the mouse jumps right to 566%.

Thanks for your attention and if you need anything else just ask.

As a diagnostic, does it make a difference if you lower the resolution of your monitor? I don't have access to a 4k monitor, but I can test later on on my new eizo monitor...

Yes it does change. It gets faster, but I still find it lags and the threshold is at 400%.