[Shadonototra]

for 120FPS (it is becoming the default noawadays), your frame budget is only 8ms

8 MILLISECONDS

your skill when you write sloppy REST API code in nodejs is not transferable here

you have to be creative while being able to write performance first code

you can't pump more hardware to solve problems, if your customers have a shitty PC, your code has to run well on that shitty PC