Poor perfomance

[Qcumber]

I am getting really poor performance with the F4U. All other aircraft that I have tested perform as expected with no change since the update. With the Corsair I am getting saw-tooth FPs and frame time spikes that are so severe I cannot fly it at all. Maps tested: Marianas WWII, Persian Gulf, Normandy, Caucasus. 

I have tried to attach my log file but it says:

null

[av8orDave]

I suspect it maybe is somewhat map dependent. I was getting bad framerates on The Channel map, but good framerates on Nevada. I'm curious what effect the cockpit texture settings have in special options but haven't tried tinkering with them yet.

[Qcumber]

1 minute ago, av8orDave said:

I suspect it maybe is somewhat map dependent. I was getting bad framerates on The Channel map, but good framerates on Nevada. I'm curious what effect the cockpit texture settings have in special options but haven't tried tinkering with them yet.

I need to do more testing. Performance on Caucasus was best but very variable frametimes. I plan on running some benchmarks at the weekend. I am disappointed as other modules are running fine. Stable frame times. Good performance. No change since before the update. 

[rob10]

6 minutes ago, Qcumber said:

I have tried to attach my log file but it says:

You have a finite amount of upload space on the forum server.  Go into your profile and you can delete some older uploads to gain space back.

[MigratoryBird]

Thank you Qcumber for the valuable info ! 

[Hartsblade]

In VR I noticed an overall performance drop with the Corsair compared to other modules.  I'm chalking it up to the model still needing optimizing, Early Access and all.

[Wood]

Quote

In VR I noticed an overall performance drop with the Corsair compared to other modules.  I'm chalking it up to the model still needing optimizing, Early Access and all.

Totally agree.. another aircraft that is virtually unplayable when released

 

 

Edited June 20 by Wood

[Hartsblade]

16 minutes ago, Wood said:

Totally agree.. another aircraft that is virtually unplayable when released

 

 

I wouldn't go that far at all.  The module is certainly playable, I've had a great time so far.  The frame loss, while noticeable, is not the end of the world. 

[Qcumber]

It is not really playable for me yet but I have not given up hope. I just need to understand why it's not working very well. 

[Raven (Elysian Angel)]

I haven't noticed any issues, but I have only done a quick free flight so far on the Normandy map. Compared to the P-47 it uses more VRAM (still fits perfectly well within a 16GB frame buffer) but framerates are about the same - on my end anyway.

It's a brand new module so I expect further optimisations along the road  

12 hours ago, Qcumber said:

saw-tooth FPs and frame time spikes

I'm not seeing that, and my system is very similar to yours 

[Qcumber]

22 minutes ago, Raven (Elysian Angel) said:

I haven't noticed any issues, but I have only done a quick free flight so far on the Normandy map. Compared to the P-47 it uses more VRAM (still fits perfectly well within a 16GB frame buffer) but framerates are about the same - on my end anyway.

It's a brand new module so I expect further optimisations along the road  

I'm not seeing that, and my system is very similar to yours 

Thanks. It must be something on my system. I haven't had time to do much testing my yet. 

[PL_Harpoon]

In my case (i5-6900K, RTX 2070 SUPER, 32BG RAM, HP Reverb G2) setting textures to medium increased FPS by 100%.

[YoYo]

No any issue for me with performance, works for me like other modules, however I have strong card.

[Raven (Elysian Angel)]

58 minutes ago, PL_Harpoon said:

setting textures to medium increased FPS by 100%

Yes of course because a 2070S only has 8GB of VRAM. 
4080S and 5080 have 16GB which is plenty for everything except the Chinook.

[Raven (Elysian Angel)]

1 hour ago, Qcumber said:

Thanks. It must be something on my system. I haven't had time to do much testing my yet. 

Sure but if it was your system you'd see the same behaviour with other modules too. It's odd really... The only thing I can think of right now is to try and decrease/remove other potential bottlenecks, such as PCIe bandwidth (check bios and make sure it's running at gen5 x16), memory bandwidth (check BIOS to make sure EXPO2 is selected - EXPO1 is there only for compatibility), disk speed (again check BIOS but for Samsung NVMes you also need to keep Samsung Magician running in Windows for optimal drive health), ...

[Qcumber]

Solved my issue. It was an eye tracking issue. Once I had rest QVFR and recalibrated etc all is ok now. There is a small performance hit compared to some other aircraft but the frame times are now more stable. 

[Mossa666]

I'm also experiencing massive fps drops with the corsair. They come out of nowhere on every map that I own. If I fly the same mission with another module everything is fine.

 

System: 4080, 5800x3d, 64 GB Ram - PICO 4

[Kovacs]

Hello, 

For me, good framerates with the corsair, in VR. No matter the map. 

System : 4090 24 Go, AMD Ryzen 7 5800X, Corsair () Vengeance LPX 2 x 16Go 3600Mhz. Pimax Cristal Light. 

[Mossa666]

Changing textures to "medium" did the trick for me for now - but again, I can play all other modules on "high" without any problems. 

[Wizard_03]

I found the mirrors in the Corsair cause a big time performance hit. More so then other aircraft in game. 

[Qcumber]

Whilst frametimes are more stable for me I am still getting worse performance than other modules.

[Mossa666]

So, this issue isn't solved then?

[dggoofy]

Confirmed poor performances with the Corsair. Double test : Mariana WWII with Corsaire alone : fps 20-25, 50 ft AGL. with Huey 60 fps (locked to 60), same condition.

[71st_Mastiff]

same, VR very unflyable, when planes appear.

[Mossa666]

Am 22.6.2025 um 18:53 schrieb Mossa666:

Changing textures to "medium" did the trick for me for now - but again, I can play all other modules on "high" without any problems. 

I've noticed something odd re this issue: When I load into a mission it seems like ALL different F4U liveries/skins are loaded into the mission. I can see this on the foled up wings - they change through the different colours/skins realy quick. Looked to me like some sort of flickering in the first place. This doesn't happen with other modules. I guess this could be a reason for the performance hit.