Making Boolean Operations Faster

[photopea]

Hi, my name is Ivan. I am the creator a popular photo editor www.photopea.com, used by 1 million people every day.

I use Paper.js in Photopea to allow my users to do boolean operations on vector shapes (cubic bezier curves). However, it tends to be very slow wor complex shapes. It might take 20 seconds up to several minutes to process it.

Is there any way to make it faster? In your interface, you need to create many objects using constructors, these objects have properties and methods, etc. You even have to specify a color, which seems to be totally unrelated to a purely geometric problem.

Could it be slow because of your geometry representation / overhead? Is there any library in Javascript (or maybe even C++, I could compile it to WASM), that you could recommend me instead of paper.js? Or could you make it faster by removing some bottlenecks in Paper.js?