Aircraft desends with a to steep path

[Ueeew]

Aircraft Version

Stable

Build info

{
    "built": "2025-01-02T14:00:26+00:00",
    "ref": "refs/pull/9664/merge",
    "sha": "a75bac67329c5ac25330829b933a4320b35d8c04",
    "actor": "Saschl",
    "event_name": "manual",
    "pretty_release_name": "9664:a75bac67",
    "version": "a380x-v0.13.0-9664.a75bac6"
}

Describe the bug

The 380 descends in a to steep path. Its usual that I get above 4000 ft/m in the descent. Thats way to high for an A380
The path also jumps around and that really annoying. I mean by that, that the path is in the first moment 300 ft below your current alltitude and than in the next second 1000 ft above you. Every time the aircraft makes a agressiv pitch up and pitch down manuever to stay with the path.

Expected behavior

The rate sould be more about 1500-3000 ft/m
Maybe sometimes a bit higher like 3300 ft/m but not higher when catching the path in higher altitudes.
Screenshots for reference. all from different real world flights.

Steps to reproduce

make a calculated and managed descent from a noraml flight.

References (optional)

Additional info (optional)

No response

Discord Username (optional)

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[donstim]

It's very possible that thrust minus drag is too high (that is, either idle thrust is too low, drag is too high, or a combination of both. However, there is not nearly enough information here to assess that. You state that you often get higher than 4000 fpm during descent, but none of your screenshots show that.

For your comparisons between the A380X and IRL, the first one is at different speeds/flight levels, and for the second one, the IRL screenshot is unreadable.

We would need more IRL data to make a better assessment and fix, if necessary.

[Ueeew]

It's very possible that thrust minus drag is too high (that is, either idle thrust is too low, drag is too high, or a combination of both. However, there is not nearly enough information here to assess that. You state that you often get higher than 4000 fpm during descent, but none of your screenshots show that.

For your comparisons between the A380X and IRL, the first one is at different speeds/flight levels, and for the second one, the IRL screenshot is unreadable.

We would need more IRL data to make a better assessment and fix, if necessary.

I noticed what you said but in every irl picture you can see that the off shows Thr Idle. So I assume that the descent rate wouldn’t increase drastically at this point. I probably true that the drag or the idle thrust at that point is to low. I with the big report I just want to state this issue cause up to 4500 fpm or even more cant normal for an a380.
PS. Unfortunately some screenshots are unreadable but you can see the THR idle on the PFD if you zoom in and also can you see the approximate range in which the descent rate is.