Terrible and decreasing performance (V1.0.12)

[iFlySimX]

8 hours ago, Eddie said:

Hello,

We are investigating what could be causing this. Proving to be quite difficult as many have reported increase in performance. 

Thank you 

So please have the team reach out to us so we can help and provide more information and help test. 

[iFlySimX]

@Eddie Any news from the team? Thanks again!

[David Bartlett]

Just tried version 1.1.1 and it was terrible. FPS bad but became worse and worse.  Seems to be maxing out VRAM.  At one point I had 19FPS with 83% VRAM usage but only about 13% CPU and 20% GPU usage.  When approaching top of descent I was trying to insert my arrival into the flight plan and then it completely crashed - yellow lines all over the ND, nothing responsive.  Then the plane started pitching up and down randomly although it was showing level flight in the PFD.  Tried ending and respawning 3 times, each time the same thing happened when I tried to edit the flight plan with the arrival.

Link to video https://www.dropbox.com/scl/fi/adswxt3sf6zzk0ssmmtg2/2025-07-13-10.18.05.mov?rlkey=ybehdrcgymekj3fnyoan9zzq7&st=su1jv6y8&dl=0

Specs Core i9-14900K, 64GB RAM, RTX 5070 Ti

[tdohrer]

On 7/3/2025 at 6:10 AM, CV409i said:

I am also getting the stutters every couple of seconds and also getting a huge lag spike on landing with this current update. It is extremely disappointing to do a long haul flight and have the aircraft become unresponsive due to lag on landing. Hope we can get a fix for this ASAP.

MSFS 2020 

CPU: AMD Ryzen 9 7900X 12-Core Processor            
RAM: 64.0 GB DDR5
Graphics card - NVIDIA GeForce RTX 4090

I have specs very close to yours; I have an Intel processor but getting same issues as you. Getting stutters in the cock pit, did a long haul flight from KMSP to PHOG and it was a stutter mess when I landed. I was using the reduct textures as well. This is in MSFS 24

[Eddie]

Hello,

We are actively looking into what is causing such performance loss for some users. It is unfortunately a pain to diagnose. We are however hopeful we're making progress. I apologise if you feel that isn't the case but I am hoping you trust that we are doing our best to make you happy. 🙂

[HierIstKlaus]

That's the performance for me after a 12 hour flight. It's the A35K with the Qatar Q-Suite cabin, but also every other cabin version is terrible for me.
No cabin version is better but still underperforming compared to other planes.

[tdohrer]

17 hours ago, Eddie said:

Hello,

We are actively looking into what is causing such performance loss for some users. It is unfortunately a pain to diagnose. We are however hopeful we're making progress. I apologise if you feel that isn't the case but I am hoping you trust that we are doing our best to make you happy. 🙂

Thanks for letting us know. If there is anything you need to help, let me know and I will find it. Couple other things that might help, the aircraft wont preview the livery in FS24. That started 2 updates ago as well. On the last update, I did the update then did a flight in a different plane, came back into the manager to install scenery and it was saying i needed to update again. I uninstalled and reinstalled instead, didnt change anything on the perforamce side though.

Edited July 16 by tdohrer
Add to.

[Mashiro]

I've also encountered this issue. My setup isn't top-tier, but it's perfectly capable of a smooth flight. I was very happy with my flights before the recent updates, but with each new version, the performance has gotten worse. The latest version of the A350 has the lowest frame rate I've ever experienced. I even doubt if it can complete a full flight (at this frame rate, I'd probably have to rely on autoland). A good example of this is time acceleration. Before, I had no problem using 4x acceleration, but in the latest version, as soon as I enable 4x acceleration, the plane starts to convulse (I hope my passengers don't mind the sudden altitude drop (￣_,￣ )). Even at 2x speed, you can clearly feel the abnormal swaying of the plane, which never happened before. I really like the A350, and I hope iniBuilds can find and fix these issues. I look forward to seeing performance improvements in the next update (returning to previous levels would be great). Until then, I'll have to fly something else, as I really can't experience flying with the current frame rates (* ￣︿￣).

[nmahink]

After the latest update the FPS performance has once again rendered the A350 unusable and back to the hangar.

[Michael G.]

On 7/18/2025 at 1:26 AM, nmahink said:

After the latest update the FPS performance has once again rendered the A350 unusable and back to the hangar.

Same here. FPS starts out kind of okay but is degrading with time (already by just sitting at the gate, but more so in flight).

In my case it seems to be due to VRAM (using an RTX 3080). Took off from OTHH (default scenery), using the A350 with default cabin (cockpit door closed) and FS2024 SU2.

Edited July 22 by Michael G.

[HierIstKlaus]

Latest version, no cabin, 11h run time.

It's a pain to fly this airplane...

[Bkocsis]

Experiencing the same issue.
Ryzen 5 9600X
RTX 5080
64Gb RAM

Fenix and PMDG FPS are around 45-50
A350 version 1.1.5

Edit: Seems to be okay with the "No Cabin" version. Cabin takes away most of fps.

Edited September 11 by Bkocsis

[Sarmat2306]

I have the same problem. I ve just completed OTHH KDFW  - 16.05hrs. I ve locked FPS 30, but after 13 hrs of flight I got degradation FPS (to 20-25). I used version w/o cabin

[DarrianCZE]

Same here, even on SU4 and 1.1.6. Reported here: 

 

[Robert S]

v 1.16 #SFO-MUC

Terrible performance after nose wheel steering completely refused to work. After fixing that, 2 in sim restarts, i experience bad performance.At the beginning of the flight, it was over 40 natural FPS. Now it seems performance locked/stuck  around 20 FPS. First flight after July, so i obviously skipped versions for testing. First time, i had bad perf with this addon. Also i had to turn on DLSS & FG for Vatsim use. Any ideas why?

Ryzen 7 7800 X3D. 4080S, 64GB RAM

By any chance Nvidia App is knocking perf down? Who is using WIN11 rn? 

I am using the DLH Cabin pack. Maybe thats why? I ve never used it before.

Edited October 6 by Robert S

[Eddie]

2 hours ago, Robert S said:

v 1.16 #SFO-MUC

Terrible performance after nose wheel steering completely refused to work. After fixing that, 2 in sim restarts, i experience bad performance.At the beginning of the flight, it was over 40 natural FPS. Now it seems performance locked/stuck  around 20 FPS. First flight after July, so i obviously skipped versions for testing. First time, i had bad perf with this addon. Also i had to turn on DLSS & FG for Vatsim use. Any ideas why?

Ryzen 7 7800 X3D. 4080S, 64GB RAM

By any chance Nvidia App is knocking perf down? Who is using WIN11 rn? 

I am using the DLH Cabin pack. Maybe thats why? I ve never used it before.

Hello,

If you attempt a completely fresh install of the aircraft, do you still see the same performance? 
 

[Robert S]

1 hour ago, Eddie said:

Hello,

If you attempt a completely fresh install of the aircraft, do you still see the same performance? 
 

Not yet. Still flying, but i ll keep you updated. One thing i missed to say, i also loaded two times an autosave of my actual flight at KSFO. May it got stuck there. Over the ocean right now only 17 FPS. But i ll keep it running until MUC.

[Robert S]

#Update 10/8/2025

@Eddie

I did not deinstall it. Started a new flight in MUC, now off to SBGR. At the beginning nearly 40FPS, after push a huge drop to 24 FPS. Now in cruise with 28FPS. GPU at 53% CPU 32% and LAT 99.2ms. Better than yesterday, so i assume there is a glitch with autosave, BUT Perf is much worse since my last flight in July. I think it was between 30-40 FPS. I also think its the DLH cabin pack, what tanks the perf. I also reduced texture quality to mid.

I ll test it tomorrow with fresh install.

[Robert S]

#Update 10/9/2025

@Eddie

I am testing rn. So i changed the livery DLH D-AIVA wihtout your DLH cabin pack. I am now quiet certain, that your cabin packs tanks my performance, i guess in general. I read another post, where somebody seemed to have the same problem with a BAW livery.

By any chance, can you look into this? If you might need other data, send me a notice. RN in payware addon SBGR, i have 42 FPS, 96% GPU, 39% CPU and still high LAT 77.3ms, but much better than with D-AIXQ and DLH cabin pack.

[Eddie]

Hello,

Can you confirm your latest test was on a fresh install?

Thank you 

[Robert S]

On 10/9/2025 at 12:02 PM, Eddie said:

Hello,

Can you confirm your latest test was on a fresh install?

Thank you 

@Eddie

Negative Sir. Today one last test before fresh install. I am following exclusion procedure. I ll keep you updated.

[Eddie]

Thank you for the follow-up and effort! 

[Robert S]

3 hours ago, Eddie said:

Thank you for the follow-up and effort! 

@Eddie

I tried one thing before this flight #HAAB-ZSPD. Performance worse this time. Peak 30FPS. I deleted shader cache before the new flight and it actually didnt change anything besides of lower FPS. 10ms more latency, means around 100ms. Over the water sometimes just 28 FPS. Camera movements are more laggy than yesterday. GPU between 37% - 53%, CPU levels between 25 - 36%.

I also deactivated all unnecessary payware addons, besides the one you can´t. Only things, Vatsim, gsx, mobiflight, but at least the same test objects. Also ET-AYM as in the test flight yesterday.

My next flight will be monday, so i ll send you update on tuesday.

 

!!!Important note - DIR-to and Step CL inputs causes stutters and fps drops around 10!!!

Happy weekend for you.

Edited Friday at 07:06 PM by Robert S