Staff spacing

Sorry - this is a double post as I incorrectly posted in "Made with Musescore" by error.
This file was original created in Finale, then exported to XML. Originally I opened the XML in MS4, but playback was horrible so I opened the XML in MS3, tweaked it, saved as MS, then opened in MS4.

The staff and system system spacing is inconsistent and I'm not sure where to look to make it consistent. There are a number of issues, but I'm starting there.

Any help or advice is appreciated.