This is an interesting project - kudos for executing it. I have to admit that when I was starting out in this field, I too fantasised about, "Would this software be faster, smaller and better in assembly?". Ofcourse, assembly programming made some sense in embedded electronics, which can be very resource constrained and even specialised for one particular application. Thinking from that aspect, perhaps you should consider making this a specialised program that runs on something like a Raspberry Pi - running such a web server directly on it, without an OS (or a very minimal OS), would make for a real cool and interesting project.