SLPMiner-- Pruning / optimizations

In the SLPMiner documentation, it says that the version of SLPMiner in the package "doesn't contain any optimizations to actually reduce the amount of time required to find maximal patterns". There is also no mention in the documentation of ways to turn on / off various kinds of pruning.

Does that mean that the code doesn't use those, or are the missing optimizations something else?