The_Nephilim

well probally won't matter much your CPU is a bit on the weaker side for that much GPU on either.. but if you want to try the amd you may need a newer cpu as well.. you may just end up being CPU bound.. and besides Google says that amd is a 4080 equivelent.. so probally better with a 5080 unless you use a Pimax Crystal? 16GB should be plenty and 24 is probally overkill..

what are your DCS Options at?? yes well AI is full of it and lies and makes stuff up not sure why anybody listens to AI.. Do you have the F18C? I have it and could probally see if I can get the JF-17 on a trial test? to see how they work on my rig but I get near flawless performance in SP and MP. EDIT: Well I just tried 2 different instant action missions the JF-17 was butter smooth. did you have your rain set on High in the options? can you share the mission in the rain you have or is it a canned mission? Well I think it is a bit harder on hardware with the f18 but this was only some single player tests.. I can go into a mp server and check. but I still think the f18 is a bit arder on the hardware from initial tests..

I would suggest starting your own thread and add a DCS Log file so others can have a look. system specs would help as well.. that spawning in issue should not happen and is a seperate issue.. hopefully that cures it.. maybe it was a corrupted nvidia driver install..

Well 2 things stand out: 2025-11-09 19:38:34.280 WARNING EDCORE (Main): CPU HAS PARKED LOGICAL CORES (this can be source of stuttering and reduced performance especially on hybrid CPUs with P/E-cores) and you are running Tacview, this could also cause stutters ingame.. also do you use any mods? It did not look like you did but I just did a quick through.. when you installed the nvidia drivers did you use DDU to uninstall the new ones and did you debloat the nvidia drivers before installing them?

Well I had posted back in June 29 2025 and had issues getting DCS to work in VR @ 90Hz. well currently and about the past month I have been having no issue running DCS @90Hz with frametimes around 8-9.5ms so well above 90FPS.. I am using the same system so either DCS Made some changes that helped or my system just works better now for some odd reason?

I know you said you had a 5090 but what is the vram usage at the point it stutters? Also do you know your Frametime during this as well? You might just have the resolution on the headset too high..

Well I had alot of succes with the oasis driver and using win 11 24h2. but you never know. Depends on your hardware.. if you have newer gear maybe worth an upgrade.. you may or may not experience issues hard to say unless you try it.

in Steam VR.. they have options to set the global rez and the per app rez.. I am using the oasis driver as well.

Well I have discovered with my gear in Sig and a Reverb G2 when I set the Global rez to 80% and game app to 80% DCS Runs fine in VR. If I set other then that say 90/80% or even 60/60% I get stutters. I have asked why the G2 seems to do that in my thread but if you get stuttering at 100% Rez in VR try lowering the resolution I guess especially in the G2.. Unknown why the G2 does this but I am near flawless with Spikes and Frametimes at 80/80%..

Well you see that is the thing I don't need to do anything it just runs near flawaless. I seen that link thnx.. I was only having a 99.9% CPU Time and was wondering what I could do to get that down as well. but it really is nearly flawless it just might be the game engine or network disconnects and stuff dragging down that .1%..

How did you find out this was your issue? Did you use latency mon or something to determine this?

Well I think I discovered something unusual. when I select my total rez at 80% and game rez @80% my game runs flawless @90hz.. but If I set the global rez to 90% or anything other then an 80/80% config my Game runs terrible.. I just ran capFramex and it was flawless for 504seconds.. This is very strange maybe something wrong with the way DCS Handles certain VR Resolutions or similar is going on here..

I am done with messing with FSOS. it seems after a while it starts acting funny or maybe it was just me.. I am now trying to keep my .1% lows lower then 11.1ms as I had switched to 90hz and it is still keeping up altho I am at 80% Rez in the G2.. Which does not look too bad but I am able to keep my Frametimes under 11.1ms 99.9% of the time.. I do believe the 1% lows are the cause of most people stutter.. I would say if you have stutter,judder or whatever you want to call it check your 1% frametimes. EDIT: I was wondering if a dev could chime in on why all of the sudden DCS seems to run so perfect for me at least. I am getting under 7ms Frametimes for GPU and less then 6ms on CPU.. it is really wierd why it seems to work like it should of since I had the 4070ti..

does it happen to you? If so are you using VR and which Hz rate do you use? then what is it and why am I not suffering as much? EDIT: I was just in a MP session on through the inferno and I had lowered my Resolution of the G2 and it was near perfect the entire flight. the Frametimes were below 7.2ms on GPU and 6.0 on CPU and I had a near perfect flight time going to WP2.. I looked out the sides and seen no stutter, nor spikes when airborne. I use the fpsVR Counter.. the point I am trying to make is maybe you put too much on your PC can handle.. or something else is amiss..

IDK Maybe have a look at my .1% thread I am getting 100% PErfect frametime on my GPU and 99.9% on the cpu which effectively is near stutter free. not sure it is entirely DCS Fault.. IF it was then I would suffer as well..