Issues with Feathered Fletching and Projectile Acceleration III

I’ve noticed several issues with how Feathered Fletching and Projectile Acceleration III interact with projectile speed modifiers and how DPS is updated.

1. DPS conversion from projectile speed

Baseline Lightning Arrow DPS: 36,350
With Feathered Fletching: 38,990
With Projectile Acceleration III: 38,990
With both: 41,631

Both effects stack as expected.

Problem:
When adding “% increased projectile speed” from passives or gear, the displayed DPS does not change. Either the modifiers aren’t applied at all, or they are applied but only update after re-socketing the skill gem (similar to how Feathered Fletching itself behaves).

2. DPS not updating correctly with Feathered Fletching

Hovering the node shows the correct DPS increase.

After actually allocating it, DPS does not change until I re-socket Lightning Arrow.

Refunding the node has the same issue: DPS doesn’t decrease until re-socketing.

Projectile Acceleration III updates DPS instantly when added or removed, which is the expected behavior.

Expected

Projectile speed modifiers from all sources should correctly increase damage via Feathered Fletching/Projectile Acceleration.

DPS values should update immediately when allocating or refunding these effects, without needing to re-socket skills.

Current

Feathered Fletching only updates DPS after re-socketing the skill gem.

Increased projectile speed modifiers show no effect on DPS unless the same “refresh” is required.

Can someone resolve this once and for all? I am not worried about the difference between "more" and "increased." I have a quiver that says 39% increased projectile speed. My DPS for Lightning Arrow is 66,118. If I select Feathered Fletching in the skill tree my DPS does not change. Does that mean it's a dps bug and the increase in damage is real or is the skill literally not doing anything for my dps? Someone surely has an answer for this simple question.

Edit: I have resocketed the Lightning Arrow skill gem with no change. I've also removed and re-equipped my quiver. No change in dps.

Path of Building also shows no change to DPS. It would be nice to know if Feathered Fletching actually does anything.

Here is my PoB at level 92 with my Lightning Arrow dps unchanged.

Before: https://maxroll.gg/poe2/pob/aq1am00g

After choosing Feathered Fletching: https://maxroll.gg/poe2/pob/bx1am20g

DPS does not change. You can open it in PoB and the numbers are still identical. From my perspective Feathered Fletching does nothing since my Quiver says 39% INCREASED projectile speed. Yet I am not getting any benefit. Would be nice for a Dev to weigh in on this.

Wow. That makes sense. I feel stupid now. Thank you!