This is an awesome achievement, but I can't help but notice that Quake ran smoother on my Pentium-133 PC in the 90s than it runs on my Mac M1 Pro...
Wait, did Quack run on Pentium-133? I had a Pentium MMX 233mhz and I always assumed it didn't ran well so I never bother to get it.
I think you’re missing the point
This engine is not optimised for performance. It's using CSS, after all.