Drone UI currently uses animated SVGs for the spinning icons indicating job status
Chrome and Firefox don’t have GPU acceleration for SVG animations -> run them entirely on CPU and not very efficiently at that (SVG animations are a second class citizen…).
Having a tab with Drone UI with active/pending job in it results in:
- 50-70% CPU load on 1 core in Chrome (checked on ver 78)
- 80-100% CPU load on 2 cores in Firefox (checked on ver 70)
Tested on a laptop with i7-8550U CPU, verified GPU acceleration was active in both browsers.
Please replace those SVGs with simple, animated GIFs - I know using CSS transitions might be tempting, but not all transitions are GPU accelerated yet…
A handful of relevant bugs in browsers: