Difficulty is at 4 because of the large number of early adopters. You're probably used to the other recent coins that had millions of coins instamined in the first few minutes that were shortly dumped thereafter. The lower supply and no single person holding a majority share of the coins should actually help this coin keep some value and credibility.
Except it was an ultra-instamine. A few people got an absurd amount of coins in the first 20 minutes or so before difficulty went up to sane levels. One guy here racked up 16k coins in the beginning.
We've seen better ways to tackle this with ascending block rewards - see DigitalCoin and Nibble. It seems obvious to me the OP decided to use a flawed approach so he could get lots of coins for himself. If you want to support that go ahead...