If you give these guys high light and summer heat enough to support vandas they will grow very fast and bloom on one year growths. Much cooler and dryer in winter. They come from grassland and scrubby shrub areas (usually impacted by grazing) so they are very exposed relative to other paph species. It regularly gets into the 90's in summer and low 50's in the winter. Its monsoon season now, and they will probably get a good 75 inches of rain over the next 4 or so months.
The region is calcareous, so I support mine with limestone and oyster shell in the potting mix. Mine grows more like a cattleya with big thick rhizomes going over the side of the pot. It may take a while for the new growths to get roots, but they will bloom without them too.