Turbo boost mode disabled in Cubase?

Hi,

My CPU is an Intel I5 12500. It can run from 3 GHz to 4,6 GHz.

In Window 11 I have activated the power plan for high performances.

When I don’t use Cubase my CPU always run at 4,6 GHz (turbo boost always activated).

But when I launch Cubase, my CPU is locked to 4 GHz “only”. Is there a reason ?