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Are you using Developer Mode or made changes in it?
Yes
Have you disabled/removed all your mods and addons?
Yes
Brief description of the issue:
Prior to SU11, the Developer Mode FPS view provided valuable information on whether a user’s system was CPU or GPU bound for a given scenario and graphics settings. Since SU11 I have found it rarely tells me that my system in 4K or high-res VR is GPU limited, despite it having previously having been reported so under most MSFS scenarios in which I fly. This is despite my GPU being showing by external utilities as being near 100% utilised and a notably reduced CPU speed in the same scenario having neglible reduction in FPS yet a large reduction in GPU speed causes a commensurate reduction in FPS.
Provide Screenshot(s)/video(s) of the issue encountered:
See below
Detailed steps to reproduce the issue encountered:
Developer Mode used to be quite a reliable method of determining whether you were CPU (mainthread) or GPU bound, however since SU11 I have found it to be quite unreliable and it quite often tells you that you are mainthread limited when you are actually not. This is evidenced by cross-referencing with GPU load in another utility (Windows task manager is OK for this but not with DX12). If your GPU load is at or near 100% then you are clearly GPU bound.
To illustrate this, in the following scenario (middle of nowhere at altitude in a simple aircraft) I should be GPU limited, as evidenced by my Windows Task Manager showing 100% GPU load constantly, yet MSFS Dev Mode tells me I am mainthread limited:
In that same scenario, if I disable turbo on my CPU and hence drop it from 4.8GHz to 3.6GHz, a 25% speed reduction, then there is a neglible resultant reduction in MSFS performance as you would expect in a GPU bound situation. If I am CPU bound, as MSFS Dev Mode is telling me, why am I not seeing a commensurate drop in mainthread time to the reduction in CPU speed? Something is clearly broken in MSFS Dev Mode since SU11.
PC specs and/or peripheral set up if relevant:
i9 10850K, 3080 10GB, 32 GB RAM, 1TB SSD, HP Reverb 2 @ ~ 2800 x 2800 per eye or 4K in 2D.
Build Version # when you first started experiencing this issue:
SU11 beta 1 through all versions until 1.29.30.1
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