laravel - PHP best performance to delete duplicate array values

In my web application I have a function that is executed more than 100 times in a minute, and I'm trying to find a better performing approach.

public static function removeDuplicateFeeds($id, $feeds, $todo)
{
    $actionsHistory = ActionsHistory::whereAccountId($id)->whereActionName($todo)->get();
    if (!empty($actionsHistory)) {
        foreach ($actionsHistory as $history) {
            foreach ($feeds as $key => $feed) {
                if ($history->action_name == $feed['pk']) {
                    unset($feeds[$key]);
                }
            }
        }
    }
}
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I want to remove all the elements from$feeds that are in$actionsHistory as well.

UPDATE:

in this test code first index of$feeds array as"pk":"7853740779" is stored on my database and after remove duplicate this item should be removed, but i have all of$feeds items into$filteredFeeds too

$userAccountSource = InstagramAccount::with('user', 'schedule')->get();
$feeds = [
    json_decode('{"pk":"7853740779","username":"teachkidss","full_name":"..."}'),
    json_decode('{"pk":"7853740709","username":"teachkidss","full_name":"..."}'),
    json_decode('{"pk":"7853740009","username":"teachkidss","full_name":"..."}')
];

$filteredFeeds = AnalyzeInstagramPageController::removeDuplicateFeeds($userAccountSource[0]->id, $feeds, 'like');

public function removeDuplicateFeeds($id, $feeds, $todo)
{
    $feeds = collect($feeds); // If $feeds is not already a collection
    $actionsHistory = ActionsHistory::whereAccountId($id)
        ->whereActionName($todo)
        ->whereIn('action_name', $feeds->pluck('pk')) // retrieves only duplicate records
        ->select('action_name')  // reducing the select improves performance
        ->get(); // Should return a eloquent collection instance
    if (!empty($actionsHistory)) {
        return $feeds->whereNotIn('pk', $actionsHistory->pluck('action_name'));
    }
    return $feeds;
}
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