WTH - My web browser is struggling when editing dashboards

I’ve noticed that my Firefox browser running on Debian or Pop OS! struggles to keep up when I edit my HA dashboards.

My Debian machine is a PN51 Asus Mini PC (Ryzen) and the CPU fan ramps up under the same situations.

General web browsing is fine, but when I display or edit my HA dashboard, my PC runs hot. There’s a noticeable increase in demand when switching from the Automations page to a dashboard page. I’m not streaming security camera video or anything too demanding.

I’ve also noticed that Fully Kiosk Browser performance is poor running dashboards on my Samsung Galaxy A7 tablets.

Perhaps 2025 can be the year of better dashboard performance?

Do you use any third party cards?

Or is this only with core cards?

Yes, but I only use a few such as:

  • Atomic Revive Calendar Card
  • clock-weather-card
  • card-mod (for custom button colours)

I do my best to stick to official HA integrations and addons wherever I can.

The only other card which may be a culprit is embedding a Windy.com page into a Web Page card.

I also notice a smaller increase in demand when the default dashboard is displayed.