Maybe dev could lower it a bit?
It is high relative to other coins, but that's what is (or perhaps was) unique about it. Don't see why you'd need to change that feature when there's plenty of other lower percentage PoS coins to choose from.
Other PoS based coins that do something a little unusual (they were either the first to do it, or one of the first) :
- HYP: high percentage reward, but capped at 1000 HYP, so it's a bit of a game (or is it perhaps an art) trying to figure out the best block sizes to stake.
- ORB: fixed reward per PoS block. Basically a greener version of PoW mining.