I restored quite of few house over the last 50 yrs.
If the house is of vintage, try the procedure "they' used when the house was new.
Probably hand brushing. Later rollers, and of course these days....spray.
If the house is YOURS, I would use the best way for your next project.
Moral to the story.....speedy...spray.
Down side....lots of prep. and cleaning afterwards.
Final time involved about the same, regardless.
John,PA PS: I even ROLL the finishes on vehicles. Sand out, and buff. Same value to the vehicle, afterwards.