A350 - SU4 - Severe performance issues

[DarrianCZE]

Hi, I have decided to give SU4 a try and I have noticed that with version 1.1.6 the aircraft performance leaves a lot to be desired. I am currently in the cruise level and I am getting a mere 35 FPS. According to the Dev mode, the Main Thread is seriously overloaded. I have tried reducing the settings but nothing changes that.

And with the same settings, I am getting around 60 - 70 FPS with other addons like FenixSim A320, etc. After updating to SU4, I have also completely re-downloaded the aircraft from scratch and removed a350 from WASM folder in Appdata. So this is basically a clean install of the plane.

As you can see in the screenshot, there is no VRAM overflow (I have 24 GB) or anything else obviously wrong.

My hardware is also not fully loaded:

Therefore I am quite certain this is not a hardware or configuration issue, and the issue lies somewhere in the A350 itself.

[DarrianCZE]

Also my temperatures are also fine:

 

[DarrianCZE]

And I am starting to think that there is some issue with the Cabin Pack, because if I move my camera into the cabin, and even just looking out of the window, the Main Thread overload gets significantly worse.

Virgin Atlantic Cabin

[frank_m]

Surprisingly, I discovered a far better performance with 1.1.6 and SU4 1.6.11.0. The experience was much smoother than in SU3 or before 1.1.6. I use the A350-900 with Lufthansa Cabin and Livery.

[tjockklat]

For me i get way better performance in SU4 compared to SU3 with every aircraft.

[DarrianCZE]

Me too. Just not in the A350. I have just flown 77W today, and I had smooth 60 FPS (without FrameGen!) for the entire duration of the flight.

Edited yesterday at 03:16 PM by DarrianCZE

[DarrianCZE]

Looks like I might have solved by problem. But it's just a test on the ground, so it's not conclusive. I will tell more once I will have time to perform a full flight.

I have deleted all aircraft folders, including one which I haven't deleted before.

1) I have uninstalled the plane in iniManager including all cabin packs

2) I have deleted following folders:
- Community\inibuilds-aircraft-a350
- AppData\Roaming\Microsoft Flight Simulator 2024\WASM\MSFS2024\inibuilds-aircraft-a350

And this is a new one, which I have not additionally tried before:
- AppData\Roaming\Microsoft Flight Simulator 2024\SimObjects\Airplanes\A350

3) Then I have installed the plane again via iniManager and done the test

FPS seem far better now. 40 - 50 FPS without FG on the ground

[frank_m]

In the simobjects folder only the state and the camera configuration is stored. It has definitely no influence on the performance.