Unfortunately there is no "Fast way" although if you keep tapping the bottom screen while on the super training page, you'll get training bags quicker but at random. It took me an hour of tapping once to get a reset bag :D
alternatively you can use EV lowering berries. There's a list on serebii noting what berries do what http://www.serebii.net/itemdex/list/berry.shtml
The EV lowering berries are the ones that say "Makes a pokemon more friendly but lowers base - "
alternatively you can use EV lowering berries. There's a list on serebii noting what berries do what http://www.serebii.net/itemdex/list/berry.shtml
The EV lowering berries are the ones that say "Makes a pokemon more friendly but lowers base - "