Map Size questions (sort of)

[Deleted member 212788]

I was wondering, what map sizes do you guys believe to be fairly balanced in terms of space for a fairly extensive story line and performance (I'm trying to avoid cases where too many polygons/models causing visual issues) Currently leaning towards 288x224 down from 320x288 (original intended space). Thoughts? I am also considering leaving separate dungeons as smaller maps in a total campaign file to make it a bit more seamless.