Your old battery might be causing your slowness. Replace it for $30 in the store, too; you don’t have to be without it for more than an hour if they have the pa

Your old battery might be causing your slowness. Replace it for $30 in the store, too; you don’t have to be without it for more than an hour if they have the parts in stock. My iPhone 6a is super quick. Camera opens in under a second.