TimeOut permanently uses 0.5–1% of CPU even when there is no timeout icon in the toolbar and dock (and obviously no timeout on the screen).
Even when I completely paused 2 timers CPU usage remained ~0.5%–1%
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It's not a critical thing but that's too much for a simple timer
I have a headless virtual machine running on background and it consumes ~2%. The whole OS consuming 2% whereas simple timer 0.5–1%
Re: Time Out Beta uses 0.5–1% CPU permanently
That doesn't seem unreasonable CPU usage, though I'm sure it could be improved. I'd guess that most of it would be updating the sidebar list once per second. Closing the window might help with that.