WebAssembly is supported as well. It has become much faster a few months back when it supported WebAssembly. On my system and using forefox it was 340 knodes/s with asm.js. With WebAssembly it is 600+ knodes/s
I have read your comments, visited your linked website. I think you may have some points.. To be clear I am testing OPNSense now for the first time. I thought their license is Apache. I will consider your points during my testing. I will also continue reading your posts on reddit and compare it to testing and repository data. Thank you for your comment, though somewhat harsh.
This may be a good time to try a new relative open source product. OPNSense is a fork of PFSense with some philosophical and practical differences. Here are some notes on what and why https://docs.opnsense.org/fork/thefork.html