Adjusting Polkadot's Ideal Staking Rate Calculation

I’d like to address a concern that I read in various channels, namely that the staker APY is currently too high which gives especially DeFi projects a hard time to compete. There are several points here:

  1. I don’t think this is the right place to address this, because, if the token holders decide so, the APY should rather be reduced through a lowering in inflation, not through the staking inefficiency. If the changes proposed here (or as an additional upgrade after) come into effect, the inflation parameter should be exposed to governance.
  2. Not increasing the ideal staking rate and rejecting this change does not necessarily mean that the APY decreases. It depends on the development of the staking rate, of course, but a likely scenario could be that the remaining gap to the ideal rate closes, and not much more enters the staking rate. That could lead to an APY around ~19% (0.1/0.525) compared to an ideal situation with the change of 16.6% (0.1/0.6).