So it was pretty obvious: The problem was caused by my integrated Realtek HD audio device, which didn’t have a native ASIO driver. Whenever I used an USB audio interface with ASIO support, the performance was like 10x better. Since I got my HP ProBook I was pretty happy except for one problem: Multimedia apps such as Premiere Pro, FL Studio, Cubase or Studio One always had serious performance problems (high latency, CPU spikes and dropouts). ASIO is usually available for professional studio hardware only, but also for Realtek integrated sound devices aka. For music production and video editing an ASIO driver can boost your system’s performance.