Help with dynamic markings and note overlap between systems

Dorico
1

I’ve been messing around with stable spaces and collision for hours now and I can’t seem to get this to work out. Any ideas?

PXL_20260520_202936269
PXL_20260520_2029362691920×2557 1.71 MB

2

Is the page overfull? (What does the percentage at the bottom of the page say?)

3

No part should be notated like this. Use an 8vb octave line.