If the whole system would give like a 10-20% power advantage if full with 3600cp this game would stay fun now it is just a race who can break this system the fastest. No idea how zenimax thought they could attract new endgame players if there is an huge gap between new and veteran vr14 that will never close but we all love fighting emperors in pvp so we will soon see a lot of players with powers like an emperor
They need to lower the strength of everything. +25% is way too high a boost. It should be a much lower amount at max level (maybe 10%). And I agree, the first few points should give more and the higher points should give less for better diminishing returns.
Currently, putting 10 pts in 1 passive grants you around 5% value (approx). That seems pretty fair to me. That means someone with 70 cp could have around 2 and a half passive in each major constellation that gives them 5% value.
Now, after those 5%, returns should be greatly diminished. I'd go as far as saying .1% for each point which means 10 pts for 1% bonus.
I know its drastic, but let me put it off this way, what made NB really good at dps was the 1-3% increased crit damage. Now you can get 10-11% by putting 30 pts in there.
I think somewhere in between those lines lies the solution.