Demon form feedback

Good day!

First of all, I want to express my delight regarding the demon form, its execution and mechanics. Thanks to it, I was able to play the build that I decided to play back in 2019 when I first saw poe 2. And I am very pleased.

At the same time, I can't help but notice several aspects that I want to discuss.
The power provided by the demon form is enormous, if you set up the ability to accumulate 200+ stacks. At the same time, the time when there are less than 20 stacks feels heavy. In this case, it resembles the Elusive mechanic, which sometimes has a peak value, and for some time you have to be content with a small effect. This is normal and this is fair. Here, the problem is rather in my Essence Drain, which at level 33 does not have enough damage to kill a normal monster at t15 with one use of the skill (at level 27, even in Act 6, monsters survived).
I will try to be more constructive.

Infernalist has an option to limit Demon Flame max to 10. This should allow to be in form constantly, having only 5% life loss per second. But the bonuses provided for these 4 ascendancy points literally say "you have a free replacement for your weapon in the form of +6 to skill level, +23% cast speed and 180% spell damage at level 20" and a cool dash. While for 2 ascendancy points you can get the same, but more.

That's why I want to suggest adding a couple of new branches of Demon Form.
1. The ability to increase the stack limit by reserving spirit (10 spirit - 10 stacks). Where you can set the accumulation limit yourself whenever you want. 100 spirit for 100 stacks. 200 spirit for 200 stacks. 50 spirit for 50 stacks.
2. The ability to increase the initial stock of stacks. That is, when using the demon form, there will be 30 stacks at once, or 20% of the number achieved from the previous use. (It would be unpleasant if the demon form ended at the most necessary moment, and the character's strength becomes several times less)
3. Reduce the cooldown of the demon form to 4 seconds. And when changing the form, trigger an explosion that will knockback (and / or blind, put to flee, ignite, scorch, other) nearby enemies.

Let me clarify that I mean alternative 3 nodes instead of the existing simple limit of 10 stacks.

This will add variety + players who do not specialize in ignite but play through the infernalist will be able to take something other than small points in the 4th trial.

Regarding the power provided by the form, I would think about making the effectiveness of the bonuses from stacks decreasing, since the difference between 10 stacks and 210 is colossal. At the same time, if there is a simple nerf to the Demon Form without the Essence Drain buff, I will die from cringe, since it is terrible without the demon form. I have to stand at the beginning of each map for 30-50 seconds, waiting for damage to appear.

Here, I made a very simple document in a few minutes, where I applied the idea of ​​​​diminishing effectiveness of demonflame stacks. It sounds logical in terms of "getting used to" the difficulty, and honestly in terms of "already having great power, and making an effort to maintain it."
I don't know how difficult it is to implement this in the game, but the formula itself is simple.
Damage per stack of Demon Flame * (100 / 100 + number of stacks - 1)
https://1drv.ms/x/c/cad9fe3e2b0dab81/EYEsui7rBMhGkL6ROObT0EAB7Ip1i6f4OqvelCyMsgVsxA?e=UrmsJm

The early stages will not undergo changes, and the super high ones will lose the ability to receive an excessive amount of damage, leaving the ability to maintain a sufficient amount of damage.

And a VERY important point. The Demon form cooldown is long, the accumulation of stacks is even longer. Therefore, please make it possible to create a portal without leaving the demon form. It's a spell, isn't it?

Kind regards!