Poor FPS

Tomfa · May 14, 2025 at 8:09 AM

Dear IPACS,

Do you have any suggestions or solutions to fix this strange FPS drop behavior around the LSGG and LSZH zones?
This only affects these two models, the A350 and A380. THANKS !

admin · May 14, 2025 at 8:28 AM Official Post

Tomfa If you do use 3rd party content or user created scenery objects, we pretty much can't do anything besides recommending to disable one object after the other until it performs ok again.

We have no control over the objects therefor if for example a collision object of a POI stretches over many kilometers, it will impact performs a lot.

Tomfa · May 14, 2025 at 8:56 AM

OK, thanks! However how do you explain that this has no impact with all the other planes, A320, 737, 777, 747 and others...?

YOLO.af · May 14, 2025 at 8:58 AM

Quote from admin

Tomfa If you do use 3rd party content or user created scenery objects, we pretty much can't do anything besides recommending to disable one object after the other until it performs ok again.
We have no control over the objects therefor if for example a collision object of a POI stretches over many kilometers, it will impact performs a lot.

Thanks,problem solved after deleting some user made airports

YOLO.af · May 14, 2025 at 9:00 AM

Quote from Tomfa

OK, thanks! However how do you explain that this has no impact with all the other planes, A320, 737, 777, 747 and others...?

I think the a350/a380 have the new ANF system, too many airports in a small area means need more rendering, it will resulting in a sharp drop in fps.

Tomfa · May 14, 2025 at 9:03 AM

Thanks, I thought something like that could have an impact on the rest.

And certainly IPACS will be able to confirm this.

Jugac64 · May 14, 2025 at 11:59 AM

Quote from YOLO.af

I think the a350/a380 have the new ANF system, too many airports in a small area means need more rendering, it will resulting in a sharp drop in fps.

This theory sounds interesting and would explain my fps drop in the A350 in certain airports. Anyway I haven’t use the A350 since it was launch when I tried it, and saw this issue, I will have to do the tests again. Now I am flying gliders only

ApfelFlieger · May 14, 2025 at 1:35 PM

Quote from YOLO.af

Thanks,problem solved after deleting some user made airports

Many of these airfields I probably created. Therefore, I would find it good to know which airfields are causing the disturbances - and if possible even to remedy them.

YOLO.af · May 14, 2025 at 2:08 PM

Quote from ApfelFlieger

Many of these airfields I probably created. Therefore, I would find it good to know which airfields are causing the disturbances - and if possible even to remedy them.

Here:

AIRPORTS: 234 various airports and heliports - (2024-08-22) - Flight-Sim.org

Since March 2024, a wide variety of airfields for Switzerland have been gradually published. The creation is now complete (exceptions will confirm the rule)…

flight-sim.org

POI: 137 objects (especially helipads) for "AIRPORTS: 234 various airports and heliports" - (2024-07-13) - Flight-Sim.org

This post complements the objects for the post "AIRPORTS: 234 various airports and heliports ...".The POIs, like the corresponding airfields, are grouped…

flight-sim.org

In my computer, this two addons will influence the game’s FPS

Tomfa · May 14, 2025 at 4:21 PM

Quote from YOLO.af

Here:
https://flight-sim.org/filebase/index…rts-2024-08-22/

https://flight-sim.org/filebase/index…rts-and-helipo/
In my computer, this two addons will influence the game’s FPS

As I mentioned before, by disabling all POIs and airfields, it works without any problems.

So if you start by adding only the HUG hospital in Geneva, e00612n4619_geneve_hospital_hug , the problem already starts at LSGG, so good luck for the future...

Tomfa · May 14, 2025 at 4:35 PM

ApfelFlieger should take them over one by one, along with all the airfields. Is all this time really worth it? Personally, I don't think so.

I would understand if this problem persisted with other aircraft, but it doesn't.

Perhaps in the future, IPACS will directly face this same problem in other countries due to incompatibility of their own POIs, and in that case, a solution will need to be found for l'A350 et l'A380

A350dabest · May 14, 2025 at 4:57 PM

When I spawn in at Tokyo Heneda and then after pushback, then disengage the sim crashes

NOTE this was before the A350 STOP bug

10th generation Apple iPad

Jugac64 · May 14, 2025 at 5:06 PM

Quote from A350dabest

When I spawn in at Tokyo Heneda and then after pushback, then disengage the sim crashes

NOTE this was before the A350 STOP bug

10th generation Apple iPad

Hi A350dabest is this your YouTube Channel? https://www.youtube.com/@OnlyPlanesNetwork

A350dabest · May 14, 2025 at 5:35 PM

Quote from Jugac64

Hi A350dabest is this your YouTube Channel? https://www.youtube.com/@OnlyPlanesNetwork

No, I wish I had that many subs but this is my youtube A350Dabest youtube

Jugac64 · May 14, 2025 at 6:25 PM

Quote from A350dabest

No, I wish I had that many subs but this is my youtube A350Dabest youtube

Subscribed!

A350dabest · May 14, 2025 at 6:31 PM

Quote from Jugac64

Subscribed!

Thanks, if I do something wrong like incorrect decent procedure just comment what I did wrong and the time stamp.

ApfelFlieger · May 14, 2025 at 10:48 PM

Quote from Tomfa

ApfelFlieger should take them over one by one, along with all the airfields. Is all this time really worth it? Personally, I don't think so.
...

Before I think about revising everything, I'm interested in what the cause really is and whether the problem is more in the area of AIRPORTS or/and in the area of POI?

With me, FPSzwar also drops, but only from approx. 40 FPS to 30 FPS.

ApfelFlieger · May 14, 2025 at 10:55 PM

Quote from Tomfa

As I mentioned before, by disabling all POIs and airfields, it works without any problems.
So if you start by adding only the HUG hospital in Geneva, e00612n4619_geneve_hospital_hug , the problem already starts at LSGG, so good luck for the future...

Please test this version of LSHU, where all data is contained in the AIRPORTS directory:

https://flight-sim.org/filebase/index…00/&fileID=3741

Tomfa · May 14, 2025 at 11:43 PM

Thanks, it seems to work with 124 FPS when approaching LSGG, only the hospital building is not visible, but the helipad placement is present.

chrispriv · May 15, 2025 at 12:53 AM

Quote from ApfelFlieger

Before I think about revising everything, I'm interested in what the cause really is and whether the problem is more in the area of AIRPORTS or/and in the area of POI?

I also took a look at it, the FPS rate drops from 120 to approx. 50 on my PC.

In my opinion, the POIs have no negative impact and it's also not caused by the individual airport files included.
Rather, it seems to be related to the volume of activated airports, maybe espacially the number of non-ICAO airports included in the scenery.
When disabling the largest directory “heliports_hospital\” with approx. 120 airport files by using two underscores, there is only a small drop of FPS remaining for me.

And yes, the problem only occurs with the a350 and a380, I don't have this issue with the a320, for example.

Quote from YOLO.af

I think the a350/a380 have the new ANF system, too many airports in a small area means need more rendering, it will resulting in a sharp drop in fps.

So, I complety agree with the conclusions of YOLO.af. The less activated airports, the better the FPS rate.
It may also be the non-ICAO airports that cause problems with the new ANF system.