Anyway, I have this problem with Ponyscape (or Inkscape that supporst powerstroke) - that the performance is getting really low (when zooming closer and scrolling). I figured out it may be because the Inkscape is using just one core, or maybe cuz of this new "power stroke" feature...

Is there anything I can do with it? (btw I have high-end PC that runs newest games on full spec, so it's not a problem of my system)

Oh, I found out the fixed version of Ponyscape v0.4 and that one has it working well.