Expression Maps sudenly too slow

The articulations within my expression maps are all of a sudden switching way to slow for fast passages. Why is that?

  1. I used to work with “direction”-mode. Due to several problems, I switched my whole template to “attribute”
  2. I worked for 5 hours within this session, everything was fine.
  3. I turned off the computer to go eat something
  4. I turn on the computer, start the session.
  5. Keyswitches are way to slow now:

https://youtu.be/8iJsxKmXzGs

My equipment:

Windows 10 / 64 bit / Cubase 10.5
i7-700K / 64GB RAM / 8GB GPU
Apollo Twin

Everything up to date!

Komplete Kontrol is causing this problem. Anyone having the same issue?