The compact version is the Palawan variant which is known to be about half the size smaller than the regular philippinense By the way, beautiful blooms. This is variety is nearly impossible to obtain in Singapore. To be honest, most except the maudiaes are difficult to obtain in Singapore considering how ironic it is as slipper orchid mainly come from asia.
What a tiny plant with lovely flowers .......but in fact I can't imagine it to be a Paph. philippinense var. roebellenii how we know it. I also would think of var./f. palawense.