1-3s? That could really lead to serious problems for such features. Normally such stuff must be guaranteed to be displayed in less than 200ms or something around that.<p>I&#x27;m currently wondering if this a safety relevant feature (according to ASIL&#x2F;ISO26262) and whether it would be even allowed to run such a feature on a component that is not designed for safety related environments which require realtime behavior (a QT UI running on Linux certainly doesn&#x27;t provide that, and even lots of other automotive software stacks including Autosar give only limited guarantees).