use less CPU for animations

[mhellstr]

This page https://3dmol.org/doc/index.html uses 400% CPU on my machine which seems a bit excessive. The same happens for any animation, which means I'm not comfortable putting them on my website.

It would be nice if there was a way to use less CPU for animations.

[dkoes]

Are you sure the issue is with that page? It has close to zero cpu utilization on my laptop. What browser and operating system are you using?

[mhellstr]

On Linux using chrome or brave the CPU utilization is 400% (on an 8-core machine), with Firefox it is 100%.

On Windows the CPU utilization is much smaller.

It really is that page (or any of my own custom 3dmol animations), since switching away from that tab drops the CPU usage to 0.

[dkoes]

The render update is consistently taking a millisecond or less while the interval is 50ms, so I am at a loss as to why there is high cpu overhead. Very open to any suggestions.