Very poor performance Project Cars 2 in VR

something daft already!! · 19 Nov 2018 at 11:57

Hi All, trying to play project cars 2 in VR and it is akin to a slide show. Around 15 fps. Everything is set to low, including super sampling (x1).

My specs are:

Ryzen 1700
16GB RAM
290x OC
A rude amount of storage, far more than needed.

Could it be the GPU? It is an older one but so is the game.

something daft already!! · 19 Nov 2018 at 14:05

danoliver1 said:
You sure supersampling is off? Check both steamvr and oculus debug tool. What fps do you get running pc2 on a monitor?

With VR running and Fraps, I can see around 15 fps on my monitor. Ill try it later without VR and see what FPS I get.

something daft already!! · 19 Nov 2018 at 17:52

Just ran in normal mode and was getting around 90fps

something daft already!! · 19 Nov 2018 at 18:41

I just tried again and I am now getting 45fps ish. Hmm. I did notice cornering was a bit jerky but otherwise seems to have solved itself lol.

Edit: scrub that, I am able to do about a lap then it degenerates into a jerk mess but the fps remain in the mid 40s.

something daft already!! · 19 Nov 2018 at 23:26

I've uploaded a video of it happening. It starts towards the end of lap 1. Around 1 min 18 seconds in. The stutter gets worse as the lap goes on.

something daft already!! · 20 Nov 2018 at 08:56

Thanks for the replies. It makes no difference in wet or dry. It just happened that the one I filmed was in the wet.

Card temps do not get any higher than any other games. Around 80 - 85 degrees, which is normal for this card.

something daft already!! · 20 Nov 2018 at 16:55

It is like the texture memory is full on the GPU and it has to load the textures constantly. When I exit a race and start another, it will be smooth for almost a lap then become choppy again. I have tried various screen resolutions and none have helped. It is rather like AMD hardware has been scuppered by the game.

I had a feeling it could be due to CPU. I tried to set the affinity to 4 cores but it still seems to only want to use two. I have another 14 cores to play with!

something daft already!! · 21 Nov 2018 at 17:44

I've just tried it outside VR and it's the same. OK for a while, then a stuttery mess before the end of the first lap. Something is afoot here. No other game is affected by this phenomenon.

something daft already!! · 21 Nov 2018 at 19:30

Uncle Petey said:
So have you checked your VRAM usage?

I have and it never goes over 2.5gb. I thought that was the issue at first but when running Afterburner I could monitor that and CPU/GPU use.

something daft already!! · 22 Nov 2018 at 11:41

Ravenger said:
Afterburner and other GPU monitoring programs can cause framerate issues in VR games. It's recommended you don't use them while playing in VR.

Thanks for the suggestion.
Ive tried with and without, no change.

I've tried it with minimal programs running other than essentials, again it is the same. I almost tired a clean install of windows last night but ran out of enthusiasm after installing windows on another drive. Maybe I'll complete it tonight but I'm feeling like it isn't worth the bother.

something daft already!! · 22 Nov 2018 at 12:32

SupraWez said:
Is it only PCars 2 your having issues with?

It is.

Not tired deleting the cfg file yet. I'll try it tonight.

something daft already!! · 22 Nov 2018 at 18:34

danoliver1 said:
Try deleting the gfx.xml file could be a dodgy cfg.

Where is that file located please? I can't see it in the root folder or in documents/project cars2

something daft already!! · 22 Nov 2018 at 20:04

I think I have solved it. It was being caused by my wheel. It is an ancient Saitek R440. I disconnected it and used my xbox controller and it was smooth. Not ideal but better than nothing.