Tempo editing does not affect metronome - cubase 14 artist

Hey all!

I recorded the band without a clicktrack and now I want to straighten the tempo so I can start recording separate tracks to have a nice demo.

When I open the recording in the sample editor, click in the definitions tab on manual adjust, we have the waveform and 2 rulers above it, 1 matching the adjustments (dark grey) and 1 followed by the metronome (light grey) and those 2 don’t match.
Activating musical mode allignes them but then the adjustments made, alter the audio and not the (midi-)tempo.
What do I have to do to get the metronome follow the adjustments?