MSFS24 SU4 – Seated Passengers external FPS severe drop + baggage trucks problem

[tonychenmusic]

Hello GSX Team,

I’d like to report a couple of issues observed in MSFS 2024 SU4 with GSX.

1. Seated Passengers (SP) cause severe external FPS drop
When Seated Passengers are enabled and properly initialized, external FPS drops gradually during boarding (for example, from ~40–50 down to low 20s) and does not recover for the rest of the session.
Closing doors, pushback, or restarting GSX does not restore FPS — only restarting the simulator does.

This has been confirmed on multiple aircraft (PMDG 737, FSLabs, Fenix).
Aircraft without SP support (e.g. Bravo 787) are not affected.
Internal/cockpit FPS remains normal.

Workaround: Disabling Seated Passengers immediately restores normal external FPS.

2. Baggage trucks remaining after loading / unloading
It also feels unusual that baggage trucks are intentionally kept next to the aircraft after loading or unloading is completed, rather than leaving once their task is finished.
This is especially noticeable after deboarding is fully completed, where trucks remain parked indefinitely.

Both issues are reproducible in SU4.

Thank you for your continued work on GSX. I hope this information is helpful and can be fixed too.

[virtuali]

1. Seated Passengers (SP) cause severe external FPS drop
When Seated Passengers are enabled and properly initialized, external FPS drops gradually during boarding (for example, from ~40–50 down to low 20s) and does not recover for the rest of the session.

That's normal: seated passengers ARE visible in External view, so they WILL cause an fps drop, nothing you add in graphic is free... during boarding, it's normal the fps would constantly drop, because we are displaying BOTH a progressively increased number of seated passengers AND the ones walking on top of that (which are even heavier on fps).

After boarding, the fps impact should be lower, because there's nobody walking anymore, but if the airplane is full of passengers and they are visible, you can't expect them to have zero cost on performance AS IF the airplane was empty.

Closing doors, pushback, or restarting GSX does not restore FPS — only restarting the simulator does.

That's normal as well,  GSX won't "empty" the airplane if you restart it.

Internal/cockpit FPS remains normal.

That's normal either: if you close the cockpit door, Seated Passengers are not displayed, that's how's supposed to be.

2. Baggage trucks remaining after loading / unloading

If you read the release notes, you would have known this is not an "issue", it's a change that has been requested by many users for a long time, they will be removed automatically upon Departure.

[tonychenmusic]

Hi, thanks for reply.

The thing is, in SU3, the seated passengers didn't cost this big fps amount. It's like over 20 fps after SU4, so it would be great if you look into it.

And for the baggage truck - it's reasonable to wait until pushback during departure, but it would be strange to leave baggage truck there after deboarding.

Now, the baggage truck remains there after deboarding, this would be a strange view. Hope this part can be fixed if the departure phase is normal.

Thank you!

[virtuali]

The thing is, in SU3, the seated passengers didn't cost this big fps amount. It's like over 20 fps after SU4, so it would be great if you look into it.

That's not what we observed:

- in SU2, invisible seated passengers had a basically zero effect
- in SU3, invisible seated passengers had a BIG fps impact
- in SU4, invisible seated passengers have some fps impact, much lower than SU3, but not as close to zero as SU2 was.

And for the baggage truck - it's reasonable to wait until pushback during departure, but it would be strange to leave baggage truck there after deboarding

The way it's supposed to work, is they remain only after Boarding is completed, they should work like before after Deboarding, but of course I'll check this is the case.

[tonychenmusic]

Hi, for seated passengers, I never had any FPS issues before SU4. Their impacts were small or negligible enough to be ignored.

But the last 2 days, I noticed it cost about 20 fps after the boarding is complete. And we have internal cockpit fps 40 - 50, while the external become 18 - 22ish, that's a disaster session. And after I turned the seated passenger off through the installer, now the external go back to normal.

So I guess there may be something in conflict with the SU4 update. I've tried it with different aircraft, including the newly released pmdg 737-800, so that's why I am reporting this to you.

Thank you~~

[tonychenmusic]

Hi,

Just to clarify, my concern is not that seated passengers have a performance cost — that is expected.

What seems different in SU4 is the magnitude and behavior of the cost in external view:

After boarding completes, external FPS can drop by ~20+ FPS

Internal/cockpit FPS remains high (40–50)

The session does not recover unless the sim is restarted

Disabling Seated Passengers completely restores normal external FPS immediately

This behavior was not observed for me prior to SU4, and it is reproducible across multiple aircraft.

So it feels less like a linear performance cost, and more like a change in how external objects are handled after SU4.

Just wanted to share this in case it helps identify any SU4-related interaction.

Thanks again for taking a look.