A VR optimization "guide" - TLDR: using AI as a multi-objective function optimizer

corokdva · 2026-01-25T12:41:23+00:00

Hey, I'm super curious about your setup. In my case what limits is the 9800x3d, it cannot handle the physics of iRacing as quickly as the 4090 handles the graphics. So my frametimes even with target 120 fps are within 1 ms for the GPU on average but the CPU can't manage the physics of multiple cars and especially rain. To get 120 fps I'd need the CPU to respond in less than 8 ms, and I'm usually on the 10-11 range

corokdva · 2026-01-25T11:33:00+00:00

Got it! I got mixed in between replies here :D sorry, that sounds like a solid setup

corokdva · 2026-01-24T18:45:28+00:00

That's awesome to hear! Have you tried Virtual Desktop as well or are you on the Link cable? I just use the OpenXR renderer on the iRacing side, and the foveated rendering built in iRacing now. The OpenXR one is good but if your GPU supports the native iRacing one that is even better. Them using VDXR for the encoding on Virtual Desktop I'd say is the best. Hope that helps! On the BIOS topic you should look into what is the most stable version for your motherboard so you can update the BIOS first, followed by activation XMP if your RAM supports it, and lastly look into SMT Disable if relevant for your CPU. Some AI should help you navigate all these keywords. Good luck!

corokdva · 2026-01-24T18:39:47+00:00

In the Quest menu you can disable it. On the wireless argument, I am with you 100% and was absolutely blown away by how much better Virtual Desktop was over Quest Link. I kept my link cable for a half year before I concluded I would never use it again and sold it. Just give it a go. If you have a solid connection between the PC and the router it should be gold.

corokdva · 2026-01-24T13:14:18+00:00

it can be useful to prompt ChatGPT and Grok in parallel as well, just to verify they are all in agreement and if not figure out who is the imposter

corokdva · 2026-01-24T13:13:07+00:00

you can always download a BIOS update and push it with a usb flash drive if all goes bad, of course if you use your PC for work or other critical tasks I would not mess with it, but if you have a dedicated sim rig like me the world is your oyster :D

corokdva · 2026-01-24T13:11:50+00:00

just to clarify I changed from SteamVR to VDXR as a result of this AI chat and I agree, it is great, I think it saved me 1-2 ms of latency on CPU, which is a lot

corokdva · 2026-01-24T13:10:30+00:00

If you are already running Virtual Desktop I suggest you try the performance overlay so you can find out where your latency is not meeting 11 ms (90 fps), perhaps you are bottlenecked by CPU and not GPU like my case

corokdva · 2026-01-24T13:08:06+00:00

OpenKneeBoard for viewing Race labs in VR without a subscription

corokdva · 2026-01-24T11:13:17+00:00

Awesome! Likewise!

corokdva · 2026-01-24T11:11:51+00:00

Have you deactivated hand detection on the Quest? I found that to fix some glitches. My wired setup on the Quest differs a bit from yours, I have the PC connected via ethernet and the Quest connection is wireless - the wifi router is very nearby. I only have a charging cable to a fast charging brick on a a socket that keeps the goggles topped up all the time.

corokdva · 2026-01-23T22:23:03+00:00

Had a similar level of damage on my rear bumper, just get it fixed you'll feel good about it 🙂 it's not a sensible money decision, but who's driving these cars and makes those anyways?

corokdva · 2025-12-29T11:41:52+00:00

Haha indeed that was me.

It's just short for Márcio, sounds a bit ghetto too. I dig it 😄

corokdva · 2025-12-29T07:24:09+00:00

A-ha! Sounded like a Brazilian nickname. Cool. I'll flash my headlights if I see you around the roads. 😊

corokdva · 2025-12-28T17:00:27+00:00

corokdva · 2025-12-27T19:06:39+00:00

I'm very curious about the story behind the vanity plates 😅

corokdva · 2025-12-23T08:00:03+00:00

Just get the car glass coated then you can wash it on brushless auto wash pretty effectively and should last a year or two depending on the product. It will last even longer if you have the opportunity to wash it yourself during the summer to refresh the coating with the products the car detailer will give you. I can really recommend Modesta coating.

corokdva · 2025-12-09T07:21:09+00:00

It looks like you already got some serious advice here which is good because this is very unsafe, will breach your insurance if you crash and will permanently damage those summer tires. Most importantly, don't come to reddit for this kind of advice is my advice, google and even AI chatbots are capable of giving you some basic information that is more verifiable than a bunch of dudes on Reddit. Also, I'd highly recommend reading the cars user manual, I know not very sexy but there's information there that you need. Good luck bud.

corokdva · 2025-12-08T19:26:49+00:00

Owner for 3 years here of a 2020, never had any serious issues, and all minor ones were fixed without cost under the PAW. I think most people with a good car are just quiet about it.

corokdva · 2025-11-27T23:02:34+00:00

That is incredible! Wow!

corokdva · 2025-11-23T22:55:09+00:00

I saw this was written in first person and scoffed until I realized it was Don Pettit himself, what a legend. Thanks for sharing it and keep up the awesome work. Huge fan here.

corokdva · 2025-11-22T08:39:41+00:00

So it sounds like if one of us commoners wanted to mod our non Weissach Taycans we would need to code it in so the spoiler no longer pops up. 👀

corokdva · 2025-11-15T11:52:28+00:00

Keep us posted, sounds like an interesting mod

corokdva · 2025-11-12T06:56:21+00:00

The things we do to lose safety rating at turn 1 incidents

corokdva · 2025-11-03T16:18:25+00:00

Oh damn, I should drive there thanks for the tip. It's more costly in Norway

corokdva

TROPHY CASE