https://bugs.kde.org/show_bug.cgi?id=427335

            Bug ID: 427335
           Summary: Render brush cursor separately from the canvas pixels
                    ?
           Product: krita
           Version: 4.4.0-beta2
          Platform: unspecified
                OS: Microsoft Windows
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: General
          Assignee: krita-bugs-n...@kde.org
          Reporter: tgdev...@gmail.com
  Target Milestone: ---

SUMMARY
Greetings guys.
Can you please separate the brush cursor's render process
from that of the Canvas' ? There's a weird and slight stutter/delay just after
the end of each stroke while painting. The issue is even more obvious with
Instant Preview mode active.

STEPS TO REPRODUCE
1. with a pixel engine brush selected, paint multiple strokes like if
you wanted to do hatching lines. Instant preview is inactive.
2. repeat step 1 by painting as fast as you can and see if the brush cursor
doesn't jump to catch up(might be frame drop at the end of each stroke, I don't
know)
3. repeat step 1 with but this time with Instant Preview active.

OBSERVED RESULTS
At the end of each Stroke, the brush cursor stops moving or freezes for a brief
amount of time then jumps to its correct position. With instant preview
inactive, the impact is dampened. But with Instant preview active, it's just
obvious.

Tested on a Krita plus stable build : version 4.4.1 alpha(git b20cb06).

OS : Windows 10 1909

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