Huge CPU load on server side - probably when using "modify"

custom-cards / flex-table-card

Highly Flexible Lovelace Card - arbitrary contents/columns/rows, regex matched, perfect to show appdaemon created content and anything breaking out of the entity_id + attributes concept

GNU General Public License v3.0

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I have a test page with ~5..7 cards. Every card shows a flex-table-card with ~5 rows. Every card represents some example of using modify option. Nothing super complex, just like this:

math operation like "x * 100";
string operation like split to substrings;
convert a timestamp into Datetime.

Every time I open this page I observe a huge CPU load on a server side. If an average CPU load (measured by top command) is 5..20%, now I see it about 95%. I have to reboot the host then.

Using Chrome, Win10x64 as a client. Using x86 mini PC as a server (Debian). HA in Container.

custom-cards / flex-table-card

Huge CPU load on server side - probably when using "modify" #81