Drawing Lags Badly on Large UIViews

[alexcampbellCA]

First of all, this is a fantastic library. Your work on this is much appreciated.

I have a particular use case for this, where the view may be larger than the device's viewport. Disregarding zooming/panning for now (that's something I'll tackle later), I've noticed that there is a significant performance penalty for views that span the full width/height of the screen (say, an ipad pro), and even moreso for views that are larger than the viewport.

Are there any optimizations or culling techniques that I can implement on my end? Or features I can disable to speed things up? Or any off-the-top improvements that I could make (and maybe even contribute to this code base)? Something that comes to mind might be, say, reducing the smoothness of the lines so that not as many calls to the graphics rendering APIs are made (I know, that's likely a massive oversimplification).

Any pointers in the right direction would be much appreciated!