Instanced Stereo in VR Problems. Also, Screen Mirroring Issue

Hey guys, im badly in need of more FPS for my VR project. I have exhausted all avenues, extremely well optimised.
Only one thing left that can help… I have no instanced stereo.
It crashes every time I try to launch my map with it.
Im told by the Claude AI I asked that its becuase I have niagra and puddle FX etc.
Is there a fix for this? Any work arounds? I really kinda need Niagra in my game and ive spent a rather lot of money on all my FX and, not to mention the time.

Anyone know how I can get this working?

Also,

My Claude AI said that the VR displayed in my 4K monitor when I am in preview/standalone etc is causing me a large expense overhead. I have tried so many commands to stop the window popping up in preview but have had no joy.

Anyone got any ideas?

Thanks in Advance.

hello, i’ll try to help with what i know.

ai has no idea what they talk btw is pure hallucination. don’t take them seriously. specially on optimization or crashes.
niagara is completely fine on vr.

all is quite a big word. could you state a bit of the things you’ve optimized?

also what device are you using?
and what version of the engine.
also share the crash logs. it could be crashing for really weird reasons.
vulkan or opengl?

crashes are possible, but they might depend on the questions ive asked.
opengl and dynamic movable shadows can cause crashes in certain scenarios, i can’t remember which.
htc is prone to crashes.
it will really help if you can share more info on your setup and what have you tried.
also you really need to profile to get an idea. are you cpu or gpu bound?
how many objects you have? how many lights? how many material? drawcalls?
are you using instancing? (hism, primite data, etc)
have you optimized material instances?
have you tried adjusting the performance profile?
there’s also oculus spacewarp and htc has one too that the name escapes me atm.

yeah? how does it knows? did it run the profiler? which, btw, i recommend you to do in order to actually know what the issue is.
asking an ai is pretty much as valid as opening the bible in a random page and interpreting the verse. in fact id recommend the latter.

also your monitor has nothing to do with how well it runs on the device. though there’s a setting in the editor to not run the editor viewport at full dpi to make it faster. but it only affects the editor.