Energy shield regeneration change

i was thinking about what change would make the new EB viable and the more i thought about it the more i thought that the current way ES regenerates isn't working. Right now when you play a ES based build(CI/low life) you need to use other forms of regen that keep your ES up. The core issue that i see is in the high pace game that is POE, waiting to recharge becomes increasingly difficult and impractical.

How ES currently recharges is after 6 sec it will start increasing, and will be full after 3 sec(at 9 base). A good change to this while keeping the theme of requiring time to recharge is to use a increasing function as the recharge rate, that resets when hit(like a exponential/power function). With this being hit matters but is less punishing because you will still get some ES back. This way you can play a fester play style while being less reliant on alliterative ES generation methods.

issues with this: would need to change how recharge speed works, would need to change ES stun mechanics.

to be fair, there are passive/item mods that decrease the recharge delay.

plus, that's kind of what sets ES apart from Life.

your idea in the second paragraph is interesting though.

The idea from second paragraph seems interesting but I would see it as a keystone rather than something for normal ES work.