VR experiences IL-2 Korea

[Husar]

4 minutes ago, huligan said:

is this magic? This doesn't make any sense ! how can such a hack work? 

The internet is full of snake oil 😉

[Panzerlang]

I tested it on my Beta copy and it works (deleting the startup.cfg), almost zero drop in FPS over cities.

[AndreiTomescu]

damn. done Polder's magic stuff, bu didn't delete the startup.cfg file. the diference was there, but not wow.

Will do this also tonight. 

Thx, guys!

P.S. since this is real magic, it should be presented full steps, in a row. For everybody to enjoy.

[Av8orDave]

Deleted startup.cfg, didn't see much difference, if any. I guess I was able to finish a mission and exit without a CTD, so there's that.

[Voxman]

I deleted the startup.cfg file and it seems to have made some differences.  One thing I've noticed is that my "snap to max" view, that I have set on a button goes slow to the max view, then back out slow...really strange.  Any suggestions to make it snap quickly to Max as it was previously set?

[Dash,Polder]

My hunch is data from ones VR headset is stored from the initial setup and building of this file, and if you go about changing resolutions, modes, or switch to a different FOV if your HMD has that capability the file doesn't update itself creating some game operational output conflicts.  

[TCW_Brzi_Joe]

1 hour ago, Voxman said:

"snap to max"

Thats vr_zoom_speed , set it 1 for instant zoom.

[Dash,Polder]

You can set that in settings under camera with a slider, or manually in the startup.cfg, top section.

vr_zoom_speed = 0.10438

That's slider at 10%.

[Jade_Monkey]

10 hours ago, huligan said:

is this magic? This doesn't make any sense ! how can such a hack work? 

10 hours ago, Husar said:

The internet is full of snake oil 😉

 

It's not magic, and it's not snake oil. 

The file structure has changed, there are old parameters/categories that have disappeared and some new ones added (mostly audio related).

Careful with the internet @Husar, it's full of smartasses that post without knowing what they are saying.

[Charlo]

2 hours ago, Dash,Polder said:

My hunch is data from ones VR headset is stored from the initial setup and building of this file, and if you go about changing resolutions, modes, or switch to a different FOV if your HMD has that capability the file doesn't update itself creating some game operational output conflicts.  

Perhaps related, these startup.cfg lines that were present in my pre .003 startup.cfg but were NOT present in the stock startup.cfg after updating to .003:

or_hud_rad = 1.50000
or_hud_size = 0.75000
or_ipd = 0.05998
or_sipdc = 0.00000
or_width = 6960
stereo_dof = 5.00000

I use a Pimax Crystal Super Ultrawide, 13700k and a 5090 FE

[Dash,Polder]

1 hour ago, Charlo said:

Perhaps related, these startup.cfg lines that were present in my pre .003 startup.cfg but were NOT present in the stock startup.cfg after updating to .003:

or_hud_rad = 1.50000
or_hud_size = 0.75000

You can exclude those, the radius sets the curve on your menu, and the size sets it's overall size as it appears to you.  Those two will also affect the depth of how far the menu appears from you perception wise.

[MiGCap]

What do I have to do?

I removed the file and the only reaction was that the game didn’t start anymore. 🤷🏼

[gord]

On 7/21/2026 at 11:17 PM, YoYo said:

I didn't have much time yesterday, but I didn't notice any noticeable improvement over Seoul. New buildings and elements have been added, but I still have a noticeable FPS drop. I've seen positive posts, but they're probably not about VR, but rather 2D.

Is Seoul kinda the major FPS killer for others as well. Been getting a solid 79 frames since .03 and then had my first mission over Seoul last night and the frames plummeted to 20-29 FPS. only time i've seen that happen.

[Jade_Monkey]

19 minutes ago, MiGCap said:

What do I have to do?

I removed the file and the only reaction was that the game didn’t start anymore. 🤷🏼

 

Are you using the launcher? It should create a new one for you. Then just adjust settings to your liking again.

----

On a different note, i was playing with the cockpit camera speed settings, set them all up to 100 for speed and 0 for inertia. I assumed this would not apply to VR bc of head tracking, but it feels a bit snappier now. Is this placebo? Did anyone try this?

[Antonovomatic]

3 minutes ago, Jade_Monkey said:

 

Are you using the launcher? It should create a new one for you. Then just adjust settings to your liking again.

----

On a different note, i was playing with the cockpit camera speed settings, set them all up to 100 for speed and 0 for inertia. I assumed this would not apply to VR bc of head tracking, but it feels a bit snappier now. Is this placebo? Did anyone try this?

I would have to test in Korea, but in some other VR sims "inertia" is the perceptible difference in your body/head's inertia vs the aircraft when maneuvering/buffeting/etc rather than something being applied to the orientation of your head.  I think some titles call the setting "Sense of Flight" or other descriptors too

[GiftGruen]

Well, I also tried the snake oil approach: Defender Exception + deleting startup.cfg

While I indeed experience some placebo happineess … Pjöngjang still stutters. Seoul probably will also, so …

But in general I am quite okay now with the gaming experience so will just care more for missions and so on and not so much for hunting performance.

[Koziolek]

42 minutes ago, MiGCap said:

What do I have to do?

I removed the file and the only reaction was that the game didn’t start anymore. 🤷🏼

Use restore files function in the Launcher options. You may want to save the input folder just in case, but it kept my joystick setting, so maybe it is not necessary

Edited July 24 by Koziolek

[MiGCap]

Thank You, @Jade_Monkey and @Koziolek.

By the way, I save the input folder anew after every tiny change. 😊

[YoYo]

Out of curiosity, I deleted the startup.cfg and allowed it to regenerate. But no, gentlemen... it doesn't work. It's not some magic trick. It simply restores the rather poor graphics settings, re-enables the "helpers" option, and reverses the camera zoom settings. Also removes the 28000 and 28100 multiplayer ports. Below is a screenshot of the default settings if anyone wants to restore the zoom settings (the first 2 lines). This has essentially no effect on FPS. Seoul continued to experience FPS drops, and that's all there is to it.

BTW. It also cleared the OpenXR/VR settings and SteamVR enabled for me, even though I'm not using it. Enabling or_enable to 2 in startup.cfg solved the problem.

Edited July 24 by YoYo

[Panzerlang]

Just now, YoYo said:

Out of curiosity, I deleted the startup.cfg and allowed it to regenerate. But no, gentlemen... it doesn't work. It's not some magic trick. It simply restores the rather poor graphics settings, re-enables the "helpers" option, and reverses the camera zoom settings. Below is a screenshot of the default settings if anyone wants to restore the zoom settings (the first 2 lines). This has essentially no effect on FPS. Seoul continued to experience FPS drops, and that's all there is to it.

It worked for me. Flying low over towns and cities, I'd see my FPS drop significantly. Now it remains steady.

[YoYo]

3 minutes ago, Panzerlang said:

It worked for me. Flying low over towns and cities, I'd see my FPS drop significantly. Now it remains steady.

So how many frames are you getting over Seoul? And I hope you're not using DLSS.... .

[Panzerlang]

Just now, YoYo said:

So how many frames are you getting over Seoul? And I hope you're not using DLSS.... .

Lol. No DLSS, it sucks wad.
I'll get back to you on Seoul, not tried it there yet. But anywhere else with large amounts of buildings the FPS would drop significantly. Now I'm seeing a steady 50-ish. There was one place where it dropped to 40 for literally a second, probably a bordello.

[YoYo]

3 minutes ago, Panzerlang said:

Lol. No DLSS, it sucks wad.
I'll get back to you on Seoul, not tried it there yet. But anywhere else with large amounts of buildings the FPS would drop significantly. Now I'm seeing a steady 50-ish. There was one place where it dropped to 40 for literally a second, probably a bordello.

I have 72 FPS, but I had that before, so no change, Seoul from 38-55, also no change. The clipping is visible, it is impossible to operate from the nearby airport.

Edited July 24 by YoYo

[Panzerlang]

Seoul performs the same, no FPS drop. Weirdly though (Scramble mission), soon as I pulled my nose up towards the bombers (me in the Sabre) I saw the FPS drop to 38. Load was around 65%. It recovered soon after and smoothness wasn't affected.

All the bomber pilots were standing upright though.

[Antonovomatic]

It should be pretty easy to isolate the settings that are actually effecting this purported improvement if someone is so inclined.  Or to put it another way, I would be shocked if this isn't just altering one or more settings to a less performance-intensive selection.

Edited July 25 by Antonovomatic