I don't think so - it wouldn't grow faster than OTL (1910 - 206.000, 1921 - 219.388, 1931 - 312.231, 1959 - 410.678, 2017 - 727.968). East bound railways would see less usage than OTL (border, no strong trade links), south bound more, but there wasn't much Lwow and environs could offer Kingdom...