in the mean time, i tried your option 2 (maybe not exactly as you described):
i moved the mapsVector folder away (using the pc), switched the mapsVector folder to internal, and moved the folder back (using the pc) under the private locus structure on the external card.
now, startup takes about 12s (only tried twice).
so now, the vector maps were still available, but there were no more themes.
checking internal private structure shows that the mapsVector folder only contains an empty folder called _themes.
so now, i copied all themes to the internal mapsVector folder (unzipped version).
now, startup takes about 12-15s. so no big change from having no themes at all.
do i need to expect any issues, when having mapsVector configured to internal while having all the vector maps in the external folder?
i moved the mapsVector folder away (using the pc), switched the mapsVector folder to internal, and moved the folder back (using the pc) under the private locus structure on the external card.
now, startup takes about 12s (only tried twice).
so now, the vector maps were still available, but there were no more themes.
checking internal private structure shows that the mapsVector folder only contains an empty folder called _themes.
so now, i copied all themes to the internal mapsVector folder (unzipped version).
now, startup takes about 12-15s. so no big change from having no themes at all.
do i need to expect any issues, when having mapsVector configured to internal while having all the vector maps in the external folder?