When the display block is cycling images, the CPU usage for the browser jumps to between 40% and 50%.

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ppblaauw’s picture

ppblaauw commented
Status: Active » Closed (works as designed)

Animations with JavaScript are CPU intensive by design.
CPU usage will go up during transitions from one slide to another. You can not avoid it.

If you want to minimize CPU usage you need to use short transition times.
Using transition speeds of half a second are Ok.
You can also use longer timeouts between the transitions to minimize CPU usage.

Hope this answers your issue.