Lower time_cost Argon2 param

fn/auth.php

@@ -10,7 +10,7 @@ const PLACEHOLDER_PASSWORD = '••••••••••••••••
 const ALGO_PASSWORD = PASSWORD_ARGON2ID;
 const OPTIONS_PASSWORD = [
 	"memory_cost" => 65536,
-	"time_cost" => 24,
+	"time_cost" => 4,
 	"threads" => 64,
 ];