[utopman]

This.

I did not find other comments like this in this thread.

6% M2 cpu (even single core) is a huge computing budget for such a small feature.

At this point I don't really understand why OP seems happy with this result (sorry).

I think even a naive canvas implementation can really and quite easily cut most of this computing budget.

Also, a pure css animated thing should use mostly gpu in a right DOM implementation. I think some issues remains in this result.

Maybe OP displays it's app on a 240hz external screen which makes browser compute DOM animation at 240 fps requiring slighly more compute in a passive way (4o-mini suggests this, I am not sure browser works like this)

I remember too much of my pentium 1 166Mhz let run entire age of empires 2 game in 1997

[efilife]

I did find a comment like this. It's dead

https://news.ycombinator.com/item?id=44653068