Judging by how it runs on the desktop(4 year old gpu) and YT clip it was developed on anemic laptop and never speed tested, reminds me of Wing Commander or Test Drive 3. Learn from the past and dont link main loop speed to framefate.
I think for a demo that is perfectly fine since you get an immediate performance indicator.
I remember that the initial fbdev-on-linux folks showcased their drivers with well known animations[1] at 4-digit frame rates and never had to answer performance questions again.
[1] IIRC something like glxgears and some 3d-tubes screensaver - might have that wrong though, that was about 17 years ago.
Indeed, and with surprising results. I remember running this on a laptop (HD4000 or something) some years ago on which it ran like crap, and it took a dedicated Radeon card (6870 IIRC) to have it smooth. Today it runs what appears to be a solid vsync'd 60fps on my iPhone 6s.
