Lagging and high cpu usage when using search bar in systemsettings > shortcuts

Hi! I’m using plasma wayland on NixOS.
and when i use the search bar in systemsettings > shortcuts
I find about 1s lagging when i type/delete a letter;
and when i keep typing or deleting letters, cpu usage of systemsettings comes up to 100%

But this will not happen in the global search bar of systemsettings.

Is this a bug? I need some help