How to fix Elsa Bloodstone (Instinct, Overhealth, and Ult nerfs)

TLDR: Elsa is strong, I believe nerfs to her instinct charge rate, faster overhealth decay, and a slightly toned down Ult would make her balanced.

There are plenty of people complaining about Elsa and quite a few giving reasons for why she is busted, but I think some people are missing the mark quite a bit with what makes this character so strong.

Yes, Elsa has nuts damage mobility and survivability but most of that comes from once she has built instinct not from before she does so. I believe the reason she is too strong is simply her instinct builds too fast and is basically never removed. And then there is of course her Ult which is very strong and downright feels unfair to play against.

A few stats that I would like to point out:
Elsa needs 100 points to charge a bar of instinct, each bar decreases her dash cooldown by 2 seconds (from 8 seconds to 2 seconds at max).
Elsa gains 0.06 instinct per damage dealt, 100 from a final hit, and 200 from a final hit on an enemy hit by her trap. She loses 100 instinct on death.
Elsa gets 40 overhealth per dash which can stack up to 75. This overhealth begins to decay after 5 seconds and decays by 10 per second.
From what I can tell her Ult can grab from about 3.5 meters away. Her ult moves at 15 m/s and lasts up to 6 seconds in either direction for a maximum of 90 meters in either direction.

The reason I point out most of these stats is because they are what I believe is problematic. Her instinct charges too fast from finals and it stays way too easily. Her overhealth stays too long. And her ult grab is a little too forgiving and lasts too long in either direction.

The changes I would make:
Instinct from final hit reduced to 50, instinct from trap final hit reduced to 150
Overhealth begins to decay after 3 seconds and decays by 15/s
Ult grab range reduced to 2.5 meters, ult max duration reduced to 4 seconds in either direction, now consumes 100 instinct on use

Netease has shown in the past they prefer smaller simpler changes at a time except for major reworks, however I believe Elsa warrants a little more at once. I feel these changes target the mechanics that make her busted without ruining the mechanics that make her fun (like how they nerfed Human Torch).

I am sure there will be plenty of disagreements in the comments (some will say this does too much and some will say this does too little) but I would prefer a civil conversation over a simple "these are trash".