How does LinuxCNC handle synchronized motion w/different motors/inertia?

I am a newbie to LinuxCNC. So new, I haven’t installed it yet.
But, I am researching everything in order to convert a milling machine to CNC.

I was curious - how does LinuxCNC handle synchronized motion when the different axes might have wildly different motion characteristics? In my case the Z-axis will have a lot more inertia than the X-axis, and the A and C axis will be completely different from the other three.
Also, if motion needs to be slowed down to allow synchronized moves, can “rapids” be different in each axis?

You tell linuxcnc what speeds and accelerations each axis can do.
Then it limits to the slowest one that is being moved.
The PID does realword-at-the moment small adjustments.

So yes your axes can have very different speed capability that can be taken advantage of, if only moving the one.