In the automotive industry, there is a clear need for fast boot-up times. For example, in the digital instrument clusters, it is crucial to start as quickly as possible: When the car is started, the instrument cluster needs to be up, running and reacting almost immediately. Besides fluent user experience, this is also something controlled by official safety requirements. At the same time, as the clusters get more digitalized and graphically much more verbose with e.g. 3D contents, this is something that requires extra attention from the software design and the underlying platform/framework. To demonstrate that fast-booting instrument clusters is possible by using Qt, we took our instrument cluster demo setup and optimized it.