Hi,
I think I'm running into a problem that could easily be fixed:
As you can see on the screenshot I've included, the radius just is not enough, but the slider is already maxed.
Many live filters like the Live Twirl have some kind of scale or radius slider. Problem is: when you work at high resolutions the maximum value just isn't enough. That's why I'd suggest you to change the way the sliders work to the way they work in Blender: You can't drag the slider beyond a reasonable value that makes sense for the tool - However you can type in the box any value you want and the program will use that value accordingly.
I hope you will think about adding that behavior to the software!