Created attachment 51698 [details] this shows bad behaviour of the speed sensor Version: unspecified OS: Linux the speed sensor should be (optionally) smoth, so that it doesn't produce the effect in the attachment. maybe it is need to variate the spacing better. it seems, that it stops working, if the spacing is very small (0.00 - 0.07), because on a fast move the line doesn't shrink much. it is working, if it grows on fast move. Reproducible: Didn't try
It is already trying to smooth, so could be considered as a bug.
I agree.
Fixed in Krita master by commit 1da74f325476c83b7db60dd39d1ce108a9f4d1d5