Its because as you said you haven't used the account for years.   The faucet reward is bigger for people who've used the site, it does mention this on every faucet claim how close you might be towards reaching a higher level per hour.
  I dont know the FUN tokens will help just plain faucet collection, the biggest variance regularly is the BTC price going up and down.    The greatest tip right now for you as a small faucet collector is to go register for the newsletter and now recently they send a wheel of fortune entry once per day and thats going to be greater then all your faucet collections + you might get a nicer prize like 5000 of rp, lottery tickets or satoshis & a few rarer bigger prizes.