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Main Threading out at 40-50ms of Latency.

jmig

jmig

SOH-CM-2025
I am not a frame rate watcher. Normally, so long as the system is running well, I give the frames no mind. Well, yesterday, I noticed some stuttering, which isn’t normal for my rig. So, I went the the Debug- FPS and found that I was only getting around 17-23 FPS. I was Main Threading out at 40-50ms of latency.

Thinking that it might be the airplane, I changed to the ASOBO Baron and had the same FPS. So, I opened HWMonitor and looked at the numbers. Not a single core utilization had maxed at over 80%. The temps were all in the mid 50 degrees. I looked at the 3080 GPU and had the similar numbers, The GPU utilization was around 50-60%

This morning, I went and downloaded a 2024 version of “How to set up your MSFS for best performance.” I ran through it. Downloaded and installed latest Nvidia driver, went through setting up Control Panel tweaks, and did some other tweaks, that were suggested.

When I loaded up MSFS my FPS were now in the lower teens. :eek:

Before I do something else and lower them more, I thought I would see if any of you experts have suggestions or ideas.

I have a 1000MB internet connection running through an ASUS 5GHz router. I have been using this router for at least a year. So, I don’t think it is a download issue. I have the CPU running at about 5GHz using the normal auto boast from ASUS’s ROG Bios app. I have been doing this since I built the computer three or four months ago.

When I first built the computer, I flew the Carenado PC-12 around the NYC area. I was getting upwards to 50-70 FPS. So, something mustn’t be copcetict.
 
I’ve seen a weird bug in MSFS where I’ll get frame rate drops like that. I have a VR headset, and I tried switching VR on and back off again, and suddenly FPS were back in the 60s. I’ve had this happen a couple of times since — flipping to VR seems to reset whatever’s gone wonky in MSFS.

Even if you don’t have a VR headset, it might be worth trying the “toggle VR” command (which will give you a “no headset detected” error) to see if that does anything for you.
 
I don't think the latency issue is specific to MSFS. I've seen a lot of complaints about this lately and it seems more windows related. I've seen bad latency problems while playing Red Dead 2 lately that shows it's ugly head if I open a browser while having the game running. Keyboard response slows to a crawl to a point where I need to stop typing. I think we are getting some really bad windows updates lately and they are not helping Windows Mixed Reality either.

LouP
 
DennyA said:
I’ve seen a weird bug in MSFS where I’ll get frame rate drops like that. I have a VR headset, and I tried switching VR on and back off again, and suddenly FPS were back in the 60s. I’ve had this happen a couple of times since — flipping to VR seems to reset whatever’s gone wonky in MSFS.

Even if you don’t have a VR headset, it might be worth trying the “toggle VR” command (which will give you a “no headset detected” error) to see if that does anything for you.
Click to expand...
You were spot on. Today, it is working just fine. Go figure?
 
LouP said:
I don't think the latency issue is specific to MSFS. I've seen a lot of complaints about this lately and it seems more windows related. I've seen bad latency problems while playing Red Dead 2 lately that shows it's ugly head if I open a browser while having the game running. Keyboard response slows to a crawl to a point where I need to stop typing. I think we are getting some really bad windows updates lately and they are not helping Windows Mixed Reality either.

LouP
Click to expand...
I got rid of WMR when I bought the Quest 3. Thank goodness.
 
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