It's late, a long day and I have an early flight to your country. I assume that it is hot?
Compliance measured in um/mN
I think I have the units right? Please excuse me if I haven't.
So for a given force we have a measured deflection.
It takes more force (effort) to move a low compliance cartridge a given distance.
So when playing a record, a low compliance cart will need a higher force applied to the stylus to make it move. We want the cart body to stay still while this is happening so it must absorb this energy. Which in turn means the arm has to deal with this as well.
When playing a record, a high compliance doesn't necessarily mean more movement at the motor end of the stylus. The opposite is also not necessarily true.
It depends upon the geometry of the suspension and where the mag or coils are.
This with all the usual caveats of compatible arm, etc