Slowness

Is it (painting) to do with extreme slowness or extreme speed? Two extracts from Milan Kundera's
Slowness:

"She posseses the wisdom of slowness and deploys the whole range of techniques
for slowing things down"

"By slowing the course of their night, by dividing it into different stages each separate from the
next, Madame de T. has succeeded in giving the small span of time accorded them the semblance
of a marvellous little architecture, of a form. Imposing form on a period of time is what beauty
demands, but so does memory. For what is formless cannot be grasped, or committed to
memory"