it all depends with each patient on the recovery, and depending on how bad the stroke
is and your moms health prior to the stroke
. if your mom is having rehabillitation with specialists (doctors, nurses, physios, OT's who specialise in stroke) they will get your mom back to the best of their ability and also if your mom is concording to treatment and care.
all i can say really, is that time is a great healer. people recover quicker than others.