Absolutely, I have hands-on experience with both of those CSG wrappers in the past. Initially, I started with @chandlerprall's implementation, but eventually switched over to THREE-CSGMesh by @manthrax, specifically designed for modern three.js.
However, upon delving deeper into the subject, I stumbled upon an incredible repository called OctreeCSG by @giladdarshan. This unique project employs a distinct approach known as Octree-Embedded BSPs, surpassing others significantly with nearly a 1000X boost in performance!
It seems this technique is relatively novel and not widely recognized. Research papers on the subject were only published as of March 3rd, 2021, and the GitHub repository came into existence between April and September 2022 (approximately one year ago). This implies a significant advancement since your initial inquiry over six years ago.
In summary, while both aforementioned repositories offer enhancements compared to your previous options, OctreeCSG stands out as the top choice. I urge you to give it a try and share your feedback. As of now, I have not encountered any other CSG repositories utilizing the Octree technique, but I will update my response accordingly should I come across something superior in the future.